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Vietnamese
Tiếng Việt
Pronunciation	[tǐəŋ vìəˀt] (Northern) [tǐəŋ jìək] (Southern)
Native to	Vietnam
Native speakers	76 million (2009)
Language family	Austroasiatic Vietic Viet–Muong Vietnamese
Early forms	Viet–Muong Old Vietnamese Middle Vietnamese
Writing system	Latin (Vietnamese alphabet) Vietnamese Braille Chữ Hán and Chữ Nôm (historic; current use by Gin people)
Official status
Official language in	Vietnam  ASEAN
Recognised minority language in	Czech Republic
Language codes
ISO 639-1	vi
ISO 639-2	vie
ISO 639-3	vie
Glottolog	viet1252
Linguasphere	46-EBA
Natively Vietnamese-speaking (non-minority) areas of Vietnam
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Vietnamese (Template:Lang-vi or Tiếng Kinh) is an Austroasiatic language that originated in Vietnam, where it is the national and official language. It is by far the most spoken Austroasiatic language with over 70 million native speakers, at least seven times more than Khmer, the next most spoken Austroasiatic language. Its vocabulary has had significant influence from Chinese and French. It is the native language of the Vietnamese (Kinh) people, as well as a second language or first language for other ethnic groups in Vietnam. As a result of emigration, Vietnamese speakers are also found in other parts of Southeast Asia, East Asia, North America, Europe, and Australia. Vietnamese has also been officially recognized as a minority language in the Czech Republic.

Like many other languages in Southeast Asia and East Asia, Vietnamese is an analytic language with phonemic tone. It has head-initial directionality, with subject–verb–object order and modifiers following the words they modify. It also uses noun classifiers.

Vietnamese was historically written in Ancient Vietnamese script (Chữ Việt cỗ), before it was written in a mixture of Chữ Hán (or Chữ Nho) (Chinese characters) for writing Sino-Vietnamese words and Chữ Nôm, a locally invented Chinese-based script for writing vernacular Vietnamese. French colonial rule of Vietnam led to the official adoption of the Vietnamese alphabet (chữ Quốc ngữ) which is based on Latin script. It uses digraphs and diacritics to mark tones and pronunciation. While Chữ Hán and Chữ Nôm fell out of use in Vietnam by the early 20th century, they are still occasionally used by the Gin people in southeast China.

Geographic distribution

As the national language, Vietnamese is the lingua franca in Vietnam. It is also spoken by the Gin traditionally residing on three islands (now joined to the mainland) off Dongxing in southern Guangxi Province, China. A large number of Vietnamese speakers also reside in neighboring countries of Cambodia and Laos.

In the United States, Vietnamese is the fifth most spoken language, with over 1.5 million speakers, who are concentrated in a handful of states. It is the third most spoken language in Texas and Washington; fourth in Georgia, Louisiana, and Virginia; and fifth in Arkansas and California. Vietnamese is the seventh most spoken language in Australia. In France, it is the most spoken Asian language and the eighth most spoken immigrant language at home.

Official status

Vietnamese is the sole official and national language of Vietnam. It is the first language of the majority of the Vietnamese population, as well as a first or second language for the country's ethnic minority groups.

In the Czech Republic, Vietnamese has been recognized as one of 14 minority languages, on the basis of communities that have resided in the country either traditionally or on a long-term basis. This status grants the Vietnamese community in the country a representative on the Government Council for Nationalities, an advisory body of the Czech Government for matters of policy towards national minorities and their members. It also grants the community the right to use Vietnamese with public authorities and in courts anywhere in the country.

As a foreign language

Vietnamese is increasingly being taught in schools and institutions outside of Vietnam, a large part which is contributed by its large diaspora. In countries with strongly established Vietnamese-speaking communities such as the United States, France, Australia, Canada, Germany, and the Czech Republic, Vietnamese language education largely serves as a cultural role to link descendants of Vietnamese immigrants to their ancestral culture. Meanwhile, in countries near Vietnam such as Cambodia, Laos, China, Taiwan, and Thailand, the increased role of Vietnamese in foreign language education is largely due to the recent recovery of the Vietnamese economy.

Since the 1980s, Vietnamese language schools (trường Việt ngữ/ trường ngôn ngữ Tiếng Việt) have been established for youth in many Vietnamese-speaking communities around the world, notably in the United States.

Similarly, since the late 1980s, the Vietnamese-German community has enlisted the support of city governments to bring Vietnamese into high school curriculum for the purpose of teaching and reminding Vietnamese German students of their mother-tongue. Furthermore, there has also been a number of Germans studying Vietnamese due to increased economic investments and business.

Historic and stronger trade and diplomatic relations with Vietnam and a growing interest among the French Vietnamese population (one of France's most established non-European ethnic groups) of their ancestral culture have also led to an increasing number of institutions in France, including universities, to offer formal courses in the language.

Linguistic classification

Early linguistic work some 150 years ago classified Vietnamese as belonging to the Mon–Khmer branch of the Austroasiatic language family (which also includes the Khmer language spoken in Cambodia, as well as various smaller and/or regional languages, such as the Munda and Khasi languages spoken in eastern India, and others in Laos, southern China and parts of Thailand). Later, Muong was found to be more closely related to Vietnamese than other Mon–Khmer languages, and a Viet–Muong subgrouping was established, also including Thavung, Chut, Cuoi, etc. The term "Vietic" was proposed by Hayes (1992), who proposed to redefine Viet–Muong as referring to a subbranch of Vietic containing only Vietnamese and Muong. The term "Vietic" is used, among others, by Gérard Diffloth, with a slightly different proposal on subclassification, within which the term "Viet–Muong" refers to a lower subgrouping (within an eastern Vietic branch) consisting of Vietnamese dialects, Muong dialects, and Nguồn (of Quảng Bình Province).

Lexicon and borrowings

The result of language contact with Chinese heavily influenced the Vietnamese language overall, causing it to diverge from Viet-Muong and other South East Asian languages into Vietnamese. For example, the Vietnamese word quản lý, meaning management (noun) or manage (verb) is likely descended from the same word as guǎnlǐ (管理) in Chinese, kanri (管理 (かんり)) in Japanese, and gwanli (관리 (管理)) in Korean. Besides English and French which have made some contributions to Vietnamese language, Japanese loanwords into Vietnamese is also a more recently studied phenomenon.

Modern linguists describe modern Vietnamese having lost many Proto-Austroasiatic phonological and morphological features that original Vietnamese had. The Chinese influence on Vietnamese corresponds to various periods when Vietnam was under Chinese rule, and subsequent influence after Vietnam became independent. Early linguists thought that this meant Vietnamese lexicon then received only two layers of Chinese words, one stemming from the period under actual Chinese rule and a second layer from afterwards. These words are grouped together as Sino-Vietnamese vocabulary.

However, according to linguist John Phan, “Annamese Middle Chinese” was already used and spoken in the Red River Valley by the 1st century CE, and its vocabulary significantly fused with the co-existing Proto-Viet-Muong language, the immediate ancestor of Vietnamese. He lists three major classes of Sino-Vietnamese borrowings: Early Sino-Vietnamese (Han Dynasty (ca. 1st century CE) and Jin Dynasty (ca. 4th century CE), Late Sino-Vietnamese (Tang Dynasty), Recent Sino-Vietnamese (Ming Dynasty and afterwards)

Additionally, the French presence in Vietnam from 1777 to the Geneva Accords of 1954 resulted in influence from French into eastern Indochina. For Vietnamese, 'cà phê', derived from the French word café (coffee). Yogurt in vernacular Vietnamese is "sữa chua", but also calqued from French (yaourt) into Vietnamese (da ua - /j/a ua). Nowadays, many new words are being added to the language's lexicon especially from English. Some are incorporated into Vietnamese as loan words— e.g., "TV" has been borrowed as "tivi". The musical note is translated into Vietnamese as "nhạc nốt (musical notes)". The Cambodian name for Cambodia, "Kampuchea" becomes "Campuchia". Some other borrowings are calques, translated into Viet, for example, 'software' is translated into 'phần mềm' (literally meaning "soft part"). Some other scientific terms such as "biological cell" may be from Hán-Nôm or Han character texts, ( 细胞 - tế bào), whilst other scientific names such as "acetylcholine" are kept as they are. Some other scientific terms like "peptide", may be Vietnamized to make it easier to pronounce amongst Vietnamese words e.g. peptide may also be seen as peptit in Vietnamese texts. Other words, like muôn thuở meaning forever are seen to be purely Vietnamese invention, being derived from Vietnamese Nôm characters. Hán and Nôm words are also transliterated into the Vietnamese alphabet. Another interesting borrowing is the Vietnamese term for association club, câu lạc bộ, which was borrowed from Chinese (俱乐部; Mandarin pinyin - jùlèbù; Cantonese jyutping - keoi1 lok6 bou6) which was borrowed from Japanese (kanji - 倶楽部; katakana - クラブ; rōmaji - kurabu) which was borrowed from English.

Japanese loanwords are a more recently studied phenomenon, with a paper by Nguyen & Le (2020) classifying three layers of Japanese loanwords, the third layer being the principle study of the paper. The first layer consisted of new Kanji words created by Japanese to represent Western concepts that were not readily available in Chinese and Japanese, where by the end of the 19th century they were imported to the Chinese language. Such words resemble Chinese-made Kanji to the point that most Chinese native speakers failed to acknowledge that they actually came from Japanese (Chung 2001). This first layer is called Sino-Vietnamese words of Japanese origins.

The second layer begun with the Japanese occupation of Vietnam from 1940 until 1945. With Japanese cultural influence in Vietnam starting significantly since the 1980s, the number of Japanese words introduced into Vietnamese has increased. This new, second layer of Japan-origin loanwords is distinctive from Sino-Vietnamese words of Japanese origin in that they were borrowed directly from Japanese, and not through a third language, which was Chinese. This vocabulary includes words representative of Japanese culture, such as kimono, sumo, samurai, and bonsai from modified Hepburn romanisation. These loanwords are coined as "new Japanese loanwords", in contrast with the aforementioned Sino-Vietnamese words of Japanese origin. The new Japanese loanwords are written the same as romanized Japanese words, since they are both based on the Latin alphabet. A significant number of new Japanese loanwords are also of Chinese origin and can also be written in Chinese characters. Sometimes, the same concept can be described using both Sino-Vietnamese words of Japanese origin (first layer) and new Japanese loanwords (second layer). For example, in the Vietnamese language, judo can be referred to as both judo and nhu đạo, the Vietnamese version of the Chinese characters 柔道.

The third layer is a different phenomenon reserved for Vietnamese people in Japan working as technical trainees or technical students, which were introduced into Vietnamese writing and speech. Japanese phrases frequently used among Vietnamese technical trainees and students such as arigatō (あり がとう/thank you) or onegaishimasu (おねがいします/please) were considered to be loanwords rather than code switching.

Phonology (linguistics)

Vowels

Vietnamese has a large number of vowels. Below is a vowel diagram of Vietnamese from Hanoi (including centering diphthongs):

	Front	Central	Back
Centering	ia/iê	ưa/ươ	ua/uô
Close	i/y	ư	u
Close-mid/ Mid	ê	ơ â	ô
Open-mid/ Open	e	a ă	o

Front and central vowels (i, ê, e, ư, â, ơ, ă, a) are unrounded, whereas the back vowels (u, ô, o) are rounded. The vowels â and ă are pronounced very short, much shorter than the other vowels. Thus, ơ and â are basically pronounced the same except that ơ is of normal length while â is short – the same applies to the vowels long a and short ă .

The centering diphthongs are formed with only the three high vowels (i, ư, u). They are generally spelled as ia, ưa, ua when they end a word and are spelled iê, ươ, uô, respectively, when they are followed by a consonant.

In addition to single vowels (or monophthongs) and centering diphthongs, Vietnamese has closing diphthongs and triphthongs. The closing diphthongs and triphthongs consist of a main vowel component followed by a shorter semivowel offglide /j/ or /w/. There are restrictions on the high offglides: /j/ cannot occur after a front vowel (i, ê, e) nucleus and /w/ cannot occur after a back vowel (u, ô, o) nucleus.

	/w/ offglide		/j/ offglide
	Front	Central		Back
Centering	iêu	ươu	ươi	uôi
Close	iu	ưu	ưi	ui
Close-mid/ Mid	êu	– âu	ơi ây	ôi
Open-mid/ Open	eo	ao au	ai ay	oi

The correspondence between the orthography and pronunciation is complicated. For example, the offglide /j/ is usually written as i; however, it may also be represented with y. In addition, in the diphthongs and the letters y and i also indicate the pronunciation of the main vowel: ay = ă + /j/, ai = a + /j/. Thus, "tay" "hand" is while "tai" "ear" is . Similarly, u and o indicate different pronunciations of the main vowel: au = ă + /w/, ao = a + /w/. Thus, thau "brass" is while thao "raw silk" is .

Consonants

The consonants that occur in Vietnamese are listed below in the Vietnamese orthography with the phonetic pronunciation to the right.

		Labial	Dental/ Alveolar	Retroflex	Palatal	Velar	Glottal
Nasal		m	n		nh	ng/ngh
Stop	tenuis	p	t	tr	ch	c/k/q
	aspirated		th
	glottalized	b ]]	đ ]]
Fricative	voiceless	ph	x	s		kh	h
	voiced	v	d/gi			g/gh
Approximant			l		y/i	u/o
Rhotic			r

Some consonant sounds are written with only one letter (like "p"), other consonant sounds are written with a digraph (like "ph"), and others are written with more than one letter or digraph (the velar stop is written variously as "c", "k", or "q").

Not all dialects of Vietnamese have the same consonant in a given word (although all dialects use the same spelling in the written language). See the language variation section for further elaboration.

The analysis of syllable-final orthographic ch and nh in Vietnamese has had different analyses. One analysis has final ch, nh as being phonemes /c/, /ɲ/ contrasting with syllable-final t, c /t/, /k/ and n, ng /n/, /ŋ/ and identifies final ch with the syllable-initial ch /c/. The other analysis has final ch and nh as predictable allophonic variants of the velar phonemes /k/ and /ŋ/ that occur after the upper front vowels i /i/ and ê /e/; although they also occur after a, but in such cases are believed to have resulted from an earlier e /ɛ/ which diphthongized to ai (cf. ach from aic, anh from aing). (See Vietnamese phonology: Analysis of final ch, nh for further details.)

Tones

Each Vietnamese syllable is pronounced with an inherent tone, centered on the main vowel or group of vowels. Tonal language in Vietnamese translates to "ngôn ngữ âm sắc". Tones differ in:

• length (duration)
• pitch contour (i.e. pitch melody)
• pitch height
• phonation

Tone is indicated by diacritics written above or below the vowel (most of the tone diacritics appear above the vowel; however, the nặng tone dot diacritic goes below the vowel). The six tones in the northern varieties (including Hanoi), with their self-referential Vietnamese names, are:

Other dialects of Vietnamese may have fewer tones (typically only five).

Tonal differences of three speakers as reported in Hwa-Froelich & Hodson (2002). The curves represent temporal pitch variation while two sloped lines (//) indicates a glottal stop.

Tone	Northern dialect	Southern dialect	Central dialect
Ngang (a)
Huyền (à)
Sắc (á)
Hỏi (ả)
Ngã (ã)
Nặng (ạ)

In Vietnamese poetry, tones are classed into two groups: (tone pattern)

Words with tones belonging to a particular tone group must occur in certain positions within the poetic verse.

Vietnamese Catholics practice a distinctive style of prayer recitation called đọc kinh, in which each tone is assigned a specific note or sequence of notes.

Language variation

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The Vietnamese language has several mutually intelligible regional varieties:

Vietnamese has traditionally been divided into three dialect regions: North, Central, and South. Michel Ferlus and Nguyễn Tài Cẩn also proved that there was a separate North-Central dialect for Vietnamese as well. The term Haut-Annam refers to dialects spoken from northern Nghệ An Province to southern (former) Thừa Thiên Province that preserve archaic features (like consonant clusters and undiphthongized vowels) that have been lost in other modern dialects.

These dialect regions differ mostly in their sound systems (see below), but also in vocabulary (including basic vocabulary, non-basic vocabulary, and grammatical words) and grammar. The North-central and Central regional varieties, which have a significant number of vocabulary differences, are generally less mutually intelligible to Northern and Southern speakers. There is less internal variation within the Southern region than the other regions due to its relatively late settlement by Vietnamese speakers (around the end of the 15th century). The North-central region is particularly conservative; its pronunciation has diverged less from Vietnamese orthography than the other varieties, which tend to merge certain sounds. Along the coastal areas, regional variation has been neutralized to a certain extent, while more mountainous regions preserve more variation. As for sociolinguistic attitudes, the North-central varieties are often felt to be "peculiar" or "difficult to understand" by speakers of other dialects, despite the fact that their pronunciation fits the written language the most closely; this is typically because of various words in their vocabulary which are unfamiliar to other speakers (see the example vocabulary table below).

The large movements of people between North and South beginning in the mid-20th century and continuing to this day have resulted in a sizable number of Southern residents speaking in the Northern accent/dialect and, to a greater extent, Northern residents speaking in the Southern accent/dialect. Following the Geneva Accords of 1954 that called for the temporary division of the country, about a million northerners (mainly from Hanoi, Haiphong and the surrounding Red River Delta areas) moved south (mainly to Saigon and heavily to Biên Hòa and Vũng Tàu, and the surrounding areas) as part of Operation Passage to Freedom. About 3% (~30,000) of that number of people made the move in the reverse direction (Tập kết ra Bắc, literally "go to the North".)

Following the reunification of Vietnam in 1975, Northern and North-Central speakers from the densely populated Red River Delta and the traditionally poorer provinces of Nghệ An, Hà Tĩnh, and Quảng Bình have continued to move South to look for better economic opportunities, beginning with the new government's "New Economic Zones program" which lasted from 1975 to 1985. The first half of the program (1975–80), resulted in 1.3 million people sent to the New Economic Zones (NEZs), majority of which were relocated to the southern half of the country in previously uninhabited areas, of which 550,000 were Northerners. The second half (1981–85) saw almost 1 million Northerners relocated to the NEZs. Government and military personnel from Northern and North-central Vietnam are also posted to various locations throughout the country, often away from their home regions. More recently, the growth of the free market system has resulted in increased interregional movement and relations between distant parts of Vietnam through business and travel. These movements have also resulted in some blending of dialects, but more significantly, have made the Northern dialect more easily understood in the South and vice versa. Most Southerners, when singing modern/old popular Vietnamese songs or addressing the public, do so in the standardized accent if possible (which is Northern pronunciation). This is true in Vietnam as well as in overseas Vietnamese communities.

Modern Standard Vietnamese is based on the Hanoi dialect. Nevertheless, the major dialects are still predominant in their respective areas and have also evolved over time with influences from other areas. Historically, accents have been distinguished by how each region pronounces the letters d ( in the Northern dialect and in the Central and Southern dialect) and r ( in the Northern dialect, in the Central and Southern dialects). Thus, the Central and Southern dialects can be said to have retained a pronunciation closer to Vietnamese orthography and resemble how Middle Vietnamese sounded in contrast to the modern Northern (Hanoi) dialect which underwent shifts.

Vocabulary

Although regional variations developed over time, most of these words can be used interchangeably and be understood well, albeit, with more or less frequency then others or with slightly different but often discernible pronunciations.

Consonants

The syllable-initial ch and tr digraphs are pronounced distinctly in North-Central, Central, and Southern varieties, but are merged in Northern varieties (i.e. they are both pronounced the same way). The North-Central varieties preserve three distinct pronunciations for d, gi, and r whereas the North has a three-way merger and the Central and South have a merger of d and gi while keeping r distinct. At the end of syllables, palatals ch and nh have merged with alveolars t and n, which, in turn, have also partially merged with velars c and ng in Central and Southern varieties.

In addition to the regional variation described above, there is a merger of l and n in certain rural varieties in the North:

Variation between l and n can be found even in mainstream Vietnamese in certain words. For example, the numeral "five" appears as năm by itself and in compound numerals like năm mươi "fifty" but appears as lăm in mười lăm "fifteen" (see Vietnamese grammar#Cardinal). In some northern varieties, this numeral appears with an initial nh instead of l: hai mươi nhăm "twenty-five", instead of mainstream hai mươi lăm.

There is also a merger of r and g in certain rural varieties in the South:

The consonant clusters that were originally present in Middle Vietnamese (of the 17th century) have been lost in almost all modern Vietnamese varieties (but retained in other closely related Vietic languages). However, some speech communities have preserved some of these archaic clusters: "sky" is blời with a cluster in Hảo Nho (Yên Mô, Ninh Bình Province) but trời in Southern Vietnamese and giời in Hanoi Vietnamese (initial single consonants /ʈ/, /z/, respectively).

Tones

Although there are six tones in Vietnamese, some tones may slightly "merge", but are still highly distinguishable due to the context of the speech. The hỏi and ngã tones are distinct in North and some North-central varieties (although often with different pitch contours) but have somewhat merged in Central, Southern, and some North-Central varieties (also with different pitch contours). Some North-Central varieties (such as Hà Tĩnh Vietnamese) have a slight merger of the ngã and nặng tones while keeping the hỏi tone distinct. Still, other North-Central varieties have a three-way merger of hỏi, ngã, and nặng resulting in a four-tone system. In addition, there are several phonetic differences (mostly in pitch contour and phonation type) in the tones among dialects.

The table above shows the pitch contour of each tone using Chao tone number notation (where 1 represents the lowest pitch, and 5 the highest); glottalization (creaky, stiff, harsh) is indicated with the ⟨◌̰⟩ symbol; murmured voice with ⟨◌̤⟩; glottal stop with ⟨ʔ⟩; sub-dialectal variants are separated with commas. (See also the tone section below.)

Grammar

Vietnamese, like Chinese and many languages in Southeast Asia, is an analytic language. Vietnamese does not use morphological marking of case, gender, number or tense (and, as a result, has no finite/nonfinite distinction). Also like other languages in the region, Vietnamese syntax conforms to subject–verb–object word order, is head-initial (displaying modified-modifier ordering), and has a noun classifier system. Additionally, it is pro-drop, wh-in-situ, and allows verb serialization.

Some Vietnamese sentences with English word glosses and translations are provided below.

Minh

Minh

là

BE

giáo viên

teacher.

Minh là {giáo viên}

Minh BE teacher.

"Min is a teacher."

Trí

Trí

13

13

tuổi

age

Trí 13 tuổi

Trí 13 age

"Trí is 13 years old,"

Mai

Mai

có vẻ

seem

là

BE

sinh viên

student (college)

hoặc

or

học sinh.

student (under-college)

Mai {có vẻ} là {sinh viên} hoặc {học sinh}.

Mai seem BE {student (college)} or {student (under-college)}

"Mai seems to be a college or high school student."

Tài

Tài

đang

PRES.CONT

nói.

talk

Tài đang nói.

Tài PRES.CONT talk

"Tài is talking."

Giáp

Giáp

rất

INT

cao.

tall

Giáp rất cao.

Giáp INT tall

"Giáp is very tall."

Người

person

đó

that.DET

là

BE

anh

older brother

của

POSS

nó.

3.PRO

Người đó là anh của nó.

person that.DET BE {older brother} POSS 3.PRO

"That person is his/her brother."

Con

CL

chó

dog

này

DET

chẳng

NEG

bao giờ

ever

sủa

bark

cả.

all

Con chó này chẳng {bao giờ} sủa cả.

CL dog DET NEG ever bark all

"This dog never barks at all."

Nó

3.PRO

chỉ

just

ăn

eat

cơm

rice.FAM

Việt Nam

Vietnam

thôi.

only

Nó chỉ ăn cơm {Việt Nam} thôi.

3.PRO just eat rice.FAM Vietnam only

"He/she/it only eats Vietnamese rice (or food, especially spoken by the elderly)."

Tôi

1.PRO

thích

like

con

CL

ngựa

horse

đen.

black

Tôi thích con ngựa đen.

1.PRO like CL horse black

"I like the black horse."

Tôi

1.PRO

thích

like

cái

FOC

con

CL

ngựa

horse

đen

black

đó.

DET

Tôi thích cái con ngựa đen đó.

1.PRO like FOC CL horse black DET

"I like that black horse."

Hãy

HORT

ở lại

stay

đây

here

ít

few

phút

minute

cho tới

until

khi

when

tôi

1.PRO

quay

turn

lại.

come

Hãy {ở lại} đây ít phút {cho tới} khi tôi quay lại.

HORT stay here few minute until when 1.PRO turn come

"Please stay here for a few minutes until I come back."

Dates and numbers writing formats

Vietnameses speak date in the format " ". Each month's name is just the ordinal of that month appended after the word tháng, which means "month". Traditional Vietnamese however assigns other names to some months; these names are mostly used in the lunar calendar and in poetry.

When written in the short form, "DD/MM/YYYY" is preferred.

Example:

• English: 28 March 2018
• Vietnamese long form: Ngày 28 tháng 3 năm 2018
• Vietnamese short form: 28/3/2018

The Vietnamese prefer writing numbers with a comma as the decimal separator in lieu of dots, and either spaces or dots to group the digits. An example is 1 629,15 (one thousand six hundred twenty-nine point fifteen). Because a comma is used as the decimal separator, a semicolon is used to separate two numbers instead.

Writing systems

Up to the late 19th century, a writing system that was a mix of two types of scripts was used in Vietnam: chữ Hán (Chinese characters) and chữ Nôm (lit. 'Southern characters'). All formal writing, including government business, scholarship and formal literature, was done in Classical Chinese (called as "văn ngôn" - 文言 or "Hán văn" - 漢文 in Vietnamese) with chữ Hán.

Folk literature in Vietnamese was recorded using the chữ Nôm script, which is based on borrowed Chinese characters and mostly modified and invented to represent native Vietnamese words. This was because chữ Hán could only be used for Sino-Vietnamese words, and was not enough to write native Vietnamese words. For example, the Vietnamese numerals for 1-2-3 are read in "một-hai-ba" in Vietnamese or "nhất-nhị-tam" by Sino-Vietnamese pronunciation. Although the "nhất-nhị-tam" represented by 一二三 in chữ Hán was used in official contexts, Vietnamese speakers modified its chữ Nôm equivalent to 𠬠𠄩𠀧 in order to represent "một-hai-ba", which is the colloquial native equivalent.

Created in the 13th century or earlier, the Nôm writing reached its zenith in the 18th century when many Vietnamese writers and poets composed their works in Nôm, most notably Nguyễn Du and Hồ Xuân Hương (dubbed "the Queen of Nôm poetry"). However, it was only used for official purposes during the brief Hồ and Tây Sơn dynasties.

A Vietnamese Catholic, Nguyễn Trường Tộ, sent petitions to the Court which suggested a Chinese character-based syllabary which would be used for Vietnamese sounds; however, his petition failed. The French colonial administration sought to eliminate the Chinese writing system, Confucianism, and other Chinese influences from Vietnam by getting rid of Nôm.

A romanization of Vietnamese was codified in the 17th century by the Avignonese Jesuit missionary Alexandre de Rhodes (1591–1660), based on works of earlier Portuguese missionaries, particularly Francisco de Pina, Gaspar do Amaral and Antonio Barbosa. Still, chữ Nôm was the dominant script in Vietnamese Catholic literature for more than 200 years. Starting from the late 19th century, the Vietnamese alphabet (chữ Quốc ngữ or "national language script") was gradually expanded from its initial usage in Christian writing to become more popular among the general public.

The Vietnamese alphabet contains 29 letters, including one digraph (đ) and nine with diacritics, five of which are used to designate tone (i.e. à, á, ả, ã, and ạ) and the other four used for separate letters of the Vietnamese alphabet (ă, â/ê/ô, ơ, ư).

This Romanized script became predominant over the course of the early 20th century, when education became widespread and a simpler writing system was found to be more expedient for teaching and communication with the general population. Under French colonial rule, French superseded Chinese in administration. Vietnamese written with the alphabet became required for all public documents in 1910 by issue of a decree by the French Résident Supérieur of the protectorate of Tonkin. In turn, Vietnamese reformists and nationalists themselves encouraged and popularized the use of chữ quốc ngữ. By the middle of the 20th century, most writing was done in chữ quốc ngữ, which became the official script on independence.

Nevertheless, Chữ Hán was still in use during the French colonial period and as late as World War II was still featured on banknotes, but fell out of official and mainstream use shortly thereafter. The education reform by North Vietnam in 1950 eliminated the use of chữ Hán and chữ Nôm. Today, only a few scholars and some extremely elderly people are able to read chữ Nôm or use it in Vietnamese calligraphy. In contrast, members of the Gin minority in China still write in chữ Nôm.

Chữ quốc ngữ reflects a "Middle Vietnamese" dialect that combines vowels and final consonants most similar to northern dialects with initial consonants most similar to southern dialects. This Middle Vietnamese is presumably close to the Hanoi variety as spoken sometime after 1600 but before the present. (This is not unlike how English orthography is based on the Chancery Standard of Late Middle English, with many spellings retained even after the Great Vowel Shift.)

Literature

The Tale of Kieu is an epic narrative poem by the celebrated poet Nguyễn Du, (阮攸), which is often considered the most significant work of Vietnamese literature. It was originally written in Chữ Nôm (titled Đoạn Trường Tân Thanh 斷腸新聲) and is widely taught in Vietnam (in chữ quốc ngữ transliteration).

Computer support

The Unicode character set contains all Vietnamese characters and the Vietnamese currency symbol. On systems that do not support Unicode, many 8-bit Vietnamese code pages are available such as Vietnamese Standard Code for Information Interchange (VSCII) or Windows-1258. Where ASCII must be used, Vietnamese letters are often typed using the VIQR convention, though this is largely unnecessary with the increasing ubiquity of Unicode. There are many software tools that help type Roman-script Vietnamese on English keyboards, such as WinVNKey and Unikey on Windows, or MacVNKey on Macintosh, with popular methods of encoding Vietnamese using Telex, VNI or VIQR input methods. Telex input method is often set as the default for many devices.

History

In the distant past, Vietnamese shared more characteristics common to other languages in South East Asia and with the Austroasiatic family, such as an inflectional morphology and a richer set of consonant clusters, which have subsequently disappeared from the language since Chinese influence. Vietnamese is heavily influenced by its location in the Mainland Southeast Asia linguistic area, with the result that it has acquired or converged toward characteristics such as isolating morphology and phonemically distinctive tones, through processes of tonogenesis. These characteristics have become part of many of the genetically unrelated languages of Southeast Asia; for example, Tsat (a member of the Malayo-Polynesian group within Austronesian), and Vietnamese each developed tones as a phonemic feature. The ancestor of the Vietnamese language is usually believed to have been originally based in the area of the Red River Delta in what is now northern Vietnam.

Distinctive tonal variations emerged during the subsequent expansion of the Vietnamese language and people into what is now central and southern Vietnam through conquest of the ancient nation of Champa and the Khmer people of the Mekong Delta in the vicinity of present-day Ho Chi Minh City, also known as Saigon.

Vietnamese was primarily influenced by Chinese, which came to predominate politically in the 2nd century BC. After Vietnam achieved independence in the 10th century, the ruling class adopted Classical Chinese as the formal medium of government, scholarship and literature. With the dominance of Chinese came radical importation of Chinese vocabulary and grammatical influence. A portion of the Vietnamese lexicon in all realms consists of Sino-Vietnamese words (They are about a third of the Vietnamese lexicon, and may account for as much as 60% of the vocabulary used in formal texts.)

When France invaded Vietnam in the late 19th century, French gradually replaced Chinese as the official language in education and government. Vietnamese adopted many French terms, such as đầm (dame, from madame), ga (train station, from gare), sơ mi (shirt, from chemise), and búp bê (doll, from poupée). In addition, many Sino-Vietnamese terms were devised for Western ideas imported through the French.

Henri Maspero described six periods of the Vietnamese language:

1. Proto-Viet–Muong, also known as Pre-Vietnamese or Proto-Vietnamuong, the ancestor of Vietnamese and the related Muong language (before 7th century AD).
2. Proto-Vietnamese, the oldest reconstructable version of Vietnamese, dated to just before the entry of massive amounts of Sino-Vietnamese vocabulary into the language, c. 7th to 9th century AD. At this state, the language had three tones.
3. Archaic Vietnamese, the state of the language upon adoption of the Sino-Vietnamese vocabulary and the beginning of creation of the Vietnamese characters during the Ngô Dynasty, c. 10th century AD.
4. Ancient Vietnamese, the language represented by Chữ Nôm (c. 15th century), widely used during the Lê and the Chinese–Vietnamese, and the Ming glossary "Annanguo Yiyu" 安南國譯語 (c. 15th century) by the Bureau of Interpreters 会同馆 (from the series Huáyí Yìyǔ (Chinese: 华夷译语). By this point, a tone split had happened in the language, leading to six tones but a loss of contrastive voicing among consonants.
5. Middle Vietnamese, the language of the Dictionarium Annamiticum Lusitanum et Latinum of the Jesuit missionary Alexandre de Rhodes (c. 17th century); the dictionary was published in Rome in 1651. Another famous dictionary of this period was written by P. J. Pigneau de Behaine in 1773 and published by Jean-Louis Taberd in 1838.
6. Modern Vietnamese, from the 19th century.

Proto-Viet–Muong

The following diagram shows the phonology of Proto-Viet–Muong (the nearest ancestor of Vietnamese and the closely related Muong language), along with the outcomes in the modern language:

		Labial	Dental/Alveolar		Palatal	Velar	Glottal
Stop	tenuis	*p > b	*t > đ		*c > ch	*k > k/c/q	*ʔ > #
	voiced	*b > b	*d > đ		*ɟ > ch	*ɡ > k/c/q
	aspirated	*pʰ > ph	*tʰ > th			*kʰ > kh
	voiced glottalized	*ɓ > m	*ɗ > n		*ʄ > nh
Nasal		*m > m	*n > n		*ɲ > nh	*ŋ > ng/ngh
Affricate					*tʃ > x
Fricative	voiceless			*s > t			*h > h
	voiced	*(β) > v	*(ð) > d	*(r̝) > r	*(ʝ) > gi	*(ɣ) > g/gh
Approximant		*w > v	*l > l	*r > r	*j > d

^1 According to Ferlus, */tʃ/ and */ʄ/ are not accepted by all researchers. Ferlus 1992 also had additional phonemes */dʒ/ and */ɕ/.

^2 The fricatives indicated above in parentheses developed as allophones of stop consonants occurring between vowels (i.e. when a minor syllable occurred). These fricatives were not present in Proto-Viet–Muong, as indicated by their absence in Muong, but were evidently present in the later Proto-Vietnamese stage. Subsequent loss of the minor-syllable prefixes phonemicized the fricatives. Ferlus 1992 proposes that originally there were both voiced and voiceless fricatives, corresponding to original voiced or voiceless stops, but Ferlus 2009 appears to have abandoned that hypothesis, suggesting that stops were softened and voiced at approximately the same time, according to the following pattern:

• *p, *b > /β/
• *t, *d > /ð/
• *s > /r̝/
• *c, *ɟ, *tʃ > /ʝ/
• *k, *ɡ > /ɣ/

^3 In Middle Vietnamese, the outcome of these sounds was written with a hooked b (), representing a /β/ that was still distinct from v (then pronounced /w/). See below.

^4 It is unclear what this sound was. According to Ferlus 1992, in the Archaic Vietnamese period (c. 10th century AD, when Sino-Vietnamese vocabulary was borrowed) it was *r̝, distinct at that time from *r.

The following initial clusters occurred, with outcomes indicated:

• *pr, *br, *tr, *dr, *kr, *gr > /kʰr/ > /kʂ/ > s
• *pl, *bl > MV bl > Northern gi, Southern tr
• *kl, *gl > MV tl > tr
• *ml > MV ml > mnh > nh
• *kj > gi

A large number of words were borrowed from Middle Chinese, forming part of the Sino-Vietnamese vocabulary. These caused the original introduction of the retroflex sounds /ʂ/ and /ʈ/ (modern s, tr) into the language.

Origin of the tones

Proto-Viet–Muong had no tones to speak of. The tones later developed in some of the daughter languages from distinctions in the initial and final consonants. Vietnamese tones developed as follows:

Register	Initial consonant	Smooth ending	Glottal ending	Fricative ending
High (first) register	Voiceless	A1 ngang "level"	B1 sắc "sharp"	C1 hỏi "asking"
Low (second) register	Voiced	A2 huyền "deep"	B2 nặng "heavy"	C2 ngã "tumbling"

Glottal-ending syllables ended with a glottal stop /ʔ/, while fricative-ending syllables ended with /s/ or /h/. Both types of syllables could co-occur with a resonant (e.g. /m/ or /n/).

At some point, a tone split occurred, as in many other Southeast Asian languages. Essentially, an allophonic distinction developed in the tones, whereby the tones in syllables with voiced initials were pronounced differently from those with voiceless initials. (Approximately speaking, the voiced allotones were pronounced with additional breathy voice or creaky voice and with lowered pitch. The quality difference predominates in today's northern varieties, e.g. in Hanoi, while in the southern varieties the pitch difference predominates, as in Ho Chi Minh City.) Subsequent to this, the plain-voiced stops became voiceless and the allotones became new phonemic tones. Note that the implosive stops were unaffected, and in fact developed tonally as if they were unvoiced. (This behavior is common to all East Asian languages with implosive stops.)

As noted above, Proto-Viet–Muong had sesquisyllabic words with an initial minor syllable (in addition to, and independent of, initial clusters in the main syllable). When a minor syllable occurred, the main syllable's initial consonant was intervocalic and as a result suffered lenition, becoming a voiced fricative. The minor syllables were eventually lost, but not until the tone split had occurred. As a result, words in modern Vietnamese with voiced fricatives occur in all six tones, and the tonal register reflects the voicing of the minor-syllable prefix and not the voicing of the main-syllable stop in Proto-Viet–Muong that produced the fricative. For similar reasons, words beginning with /l/ and /ŋ/ occur in both registers. (Thompson 1976 reconstructed voiceless resonants to account for outcomes where resonants occur with a first-register tone, but this is no longer considered necessary, at least by Ferlus.)

Old Vietnamese

Old Vietnamese Phonology

		Labial	Alveolar	Palatal	Velar	Glottal
Nasal		m (m)	n (n)	nh (ɲ)	ng/ngh (ŋ)
Stop	tenuis	b/v ()	d/đ ()	ch/gi (c)	c/k/q ()	# (ʔ)
	aspirated	ph (pʰ)	th (tʰ)	t/r (s)	kh (kʰ)	h (h)
	Implosive stop	m (ɓ)	n (ɗ)	nh (ʄ)
Fricative	voiced	v (v)		d (j)
Affricate				x (tʃ)
Liquid		r	l

Old Vietnamese/Ancient Vietnamese was a Vietic language which was separated from Viet–Muong around 9th century, and evolved to Middle Vietnamese by 16th century. The sources for the reconstruction of Old Vietnamese are Nom texts, such as the 12th-century/1486 Buddhist scripture Phật thuyết Đại báo phụ mẫu ân trọng kinh ("Sūtra explained by the Buddha on the Great Repayment of the Heavy Debt to Parents"), old inscriptions, and late 13th-century (possibly 1293) Annan Jishi glossary by Chinese diplomat Chen Fu (c. 1259 – 1309). Old Vietnamese used Chinese characters phonetically where each word, monosyllabic in Modern Vietnamese, is written with two Chinese characters or in a composite character made of two different characters.

For examples, the modern Vietnamese word "trời" (heaven) was read as *plời in Old/Ancient Vietnamese.

Middle Vietnamese

The writing system used for Vietnamese is based closely on the system developed by Alexandre de Rhodes for his 1651 Dictionarium Annamiticum Lusitanum et Latinum. It reflects the pronunciation of the Vietnamese of Hanoi at that time, a stage commonly termed Middle Vietnamese (tiếng Việt trung đại). The pronunciation of the "rime" of the syllable, i.e. all parts other than the initial consonant (optional /w/ glide, vowel nucleus, tone and final consonant), appears nearly identical between Middle Vietnamese and modern Hanoi pronunciation. On the other hand, the Middle Vietnamese pronunciation of the initial consonant differs greatly from all modern dialects, and in fact is significantly closer to the modern Saigon dialect than the modern Hanoi dialect.

The following diagram shows the orthography and pronunciation of Middle Vietnamese:

		Labial	Dental/ Alveolar	Retroflex	Palatal	Velar	Glottal
Nasal		m	n		nh	ng/ngh
Stop	tenuis	p	t	tr	ch	c/k
	aspirated	ph	th			kh
	voiced glottalized	b	đ
Fricative	voiceless			s/ſ	x		h
	voiced	ꞗ	d		gi	g/gh
Approximant		v/u/o	l		y/i/ĕ
Rhotic			r

^1 occurs only at the end of a syllable.
^2 This symbol, "Latin small letter B with flourish", looks like: . It has a rounded hook that starts halfway up the left side (where the top of the curved part of the b meets the vertical, straight part) and curves about 180 degrees counterclockwise, ending below the bottom-left corner.
^3 does not occur at the beginning of a syllable, but can occur at the end of a syllable, where it is notated i or y (with the difference between the two often indicating differences in the quality or length of the preceding vowel), and after /ð/ and /β/, where it is notated ĕ. This ĕ, and the /j/ it notated, have disappeared from the modern language.

Note that b and p never contrast in any position, suggesting that they are allophones.

The language also has three clusters at the beginning of syllables, which have since disappeared:

• tl /tl/ > modern tr
• bl /ɓl/ > modern gi (Northern), tr (Southern)
• ml /ml/ > mnh /mɲ/ > modern nh

Most of the unusual correspondences between spelling and modern pronunciation are explained by Middle Vietnamese. Note in particular:

• de Rhodes' system has two different b letters, a regular b and a "hooked" b in which the upper section of the curved part of the b extends leftward past the vertical bar and curls down again in a semicircle. This apparently represented a voiced bilabial fricative /β/. Within a century or so, both /β/ and /w/ had merged as /v/, spelled as v.
• de Rhodes' system has a second medial glide /j/ that is written ĕ and appears in some words with initial d and hooked b. These later disappear.
• đ /ɗ/ was (and still is) alveolar, whereas d /ð/ was dental. The choice of symbols was based on the dental rather than alveolar nature of /d/ and its allophone in Spanish and other Romance languages. The inconsistency with the symbols assigned to /ɓ/ vs. /β/ was based on the lack of any such place distinction between the two, with the result that the stop consonant /ɓ/ appeared more "normal" than the fricative /β/. In both cases, the implosive nature of the stops does not appear to have had any role in the choice of symbol.
• x was the alveolo-palatal fricative /ɕ/ rather than the dental /s/ of the modern language. In 17th-century Portuguese, the common language of the Jesuits, s was the apico-alveolar sibilant /s̺/ (as still in much of Spain and some parts of Portugal), while x was a palatoalveolar /ʃ/. The similarity of apicoalveolar /s̺/ to the Vietnamese retroflex /ʂ/ led to the assignment of s and x as above.

De Rhodes's orthography also made use of an apex diacritic to indicate a final labial-velar nasal /ŋ͡m/, an allophone of /ŋ/ that is peculiar to the Hanoi dialect to the present day. This diacritic is often mistaken for a tilde in modern reproductions of early Vietnamese writing.

Word play

A language game known as nói lái is used by Vietnamese speakers. Nói lái involves switching the tones in a pair of words and also the order of the two words or the first consonant and rime of each word; the resulting nói lái pair preserves the original sequence of tones. Some examples:

Original phrase		Phrase after nói lái transformation	Structural change
đái dầm "(child) pee"	→	dấm đài (literal translation "vinegar stage")	word order and tone switch
chửa hoang "pregnancy out of wedlock"	→	hoảng chưa "scared yet?"	word order and tone switch
bầy tôi "all the king's subjects"	→	bồi tây "west waiter "	initial consonant, rime, and tone switch
bí mật "secrets"	→	bật mí "revealing secrets"	initial consonant and rime switch

The resulting transformed phrase often has a different meaning but sometimes may just be a nonsensical word pair. Nói lái can be used to obscure the original meaning and thus soften the discussion of a socially sensitive issue, as with dấm đài and hoảng chưa (above) or, when implied (and not overtly spoken), to deliver a hidden subtextual message, as with bồi tây. Naturally, nói lái can be used for a humorous effect.

Another word game somewhat reminiscent of pig latin is played by children. Here a nonsense syllable (chosen by the child) is prefixed onto a target word's syllables, then their initial consonants and rimes are switched with the tone of the original word remaining on the new switched rime.

Nonsense syllable	Target word		Intermediate form with prefixed syllable		Resulting "secret" word
la	phở "beef or chicken noodle soup"	→	la phở	→	lơ phả
la	ăn "to eat"	→	la ăn	→	lăn a
la	hoàn cảnh "situation"	→	la hoàn la cảnh	→	loan hà lanh cả
chim	hoàn cảnh "situation"	→	chim hoàn chim cảnh	→	choan hìm chanh kỉm

This language game is often used as a "secret" or "coded" language useful for obscuring messages from adult comprehension.

Slang

Vietnamese slang (tiếng lóng) changed from time to time. Vietnamese slang consists of pure Vietnamese words or words borrowed from other languages such as Mandarin or Indo-European languages. It is estimated that Vietnamese slang that originated from Mandarin accounts for a tiny proportion of all Vietnamese slang (4.6% of surveyed data in newspapers). On the contrary, slang that originated from Indo-European languages accounts for a more significant proportion (12%) and is much more common in today's uses. Slang borrowed from these languages can be either transliteration or vernacular. Some examples:

With the rise of the Internet, new slang is generated and popularized through social media. This more modern slang is commonly used among the younger generation in Vietnam. This more recent slang is mostly pure Vietnamese, and almost all the words are homonyms or some form of wordplay. Some examples:

There are debates on the prevalence of uses of slang among young people in Vietnam, as certain teen speak conversations become difficult to understand for older generations. Many critics believed that incorporating teenspeak or internet slang into daily conversation among teenagers would affect the formality and cadence of speech. Others argue that it is not the slang that is the problem but rather the lack of communication techniques for the instant internet messaging era. They believe slang should not be dismissed, but instead, youth should be informed enough to know when to use them and when it is appropriate.

See also

• Vietnamese Misplaced Pages
• Vietnamese calligraphy
• Vietnamese pronouns
• Vietnamese studies

Notes

1. Written as 㗂越 in Chữ Nôm

References

1. Vietnamese at Ethnologue (22nd ed., 2019)
2. "Languages of ASEAN". Retrieved 7 August 2017.
3. From Ethnologue (2009, 2013)
4. Driem, George van (2001). Languages of the Himalayas, Volume One. BRILL. p. 264. ISBN 90-04-12062-9. Of the approximately 90 millions speakers of Austroasiatic languages, over 70 million speak Vietnamese, nearly ten million speak Khmer and roughly five million speak Santali.
5. Citizens belonging to minorities, which traditionally and on long-term basis live within the territory of the Czech Republic, enjoy the right to use their language in communication with authorities and in front of the courts of law (for the list of recognized minorities see National Minorities Policy of the Government of the Czech Republic, Belorussian and Vietnamese since 4 July 2013, see Česko má nové oficiální národnostní menšiny. Vietnamce a Bělorusy). The article 25 of the Czech Charter of Fundamental Rights and Basic Freedoms ensures right of the national and ethnic minorities for education and communication with authorities in their own language. Act No. 500/2004 Coll. (The Administrative Rule) in its paragraph 16 (4) (Procedural Language) ensures, that a citizen of the Czech Republic, who belongs to a national or an ethnic minority, which traditionally and on long-term basis lives within the territory of the Czech Republic, have right to address an administrative agency and proceed before it in the language of the minority. In the case that the administrative agency doesn't have an employee with knowledge of the language, the agency is bound to obtain a translator at the agency's own expense. According to Act No. 273/2001 (About The Rights of Members of Minorities) paragraph 9 (The right to use language of a national minority in dealing with authorities and in front of the courts of law) the same applies for the members of national minorities also in front of the courts of law.
6. James Stuart Olson (28 February 1998). An Ethnohistorical Dictionary of China. Greenwood Press. p. 158. ISBN 978-0313288531.
7. Tsung, Linda (2014). Language Power and Hierarchy: Multilingual Education in China. Bloomsbury. p. 188. ISBN 978-1-4411-4235-1.
8. MLA Language Map Data Center, Modern Language Association, retrieved 2018-01-20
9. "CIA World factbook".
10. La dynamique des langues en France au fil du XXe siècle Insee, enquête Famille 1999. (in French)
11. "Vietnamese language". Britannica.
12. "National Minorities | Government of the Czech Republic". www.vlada.cz.
13. Česko má nové oficiální národnostní menšiny. Vietnamce a Bělorusy (in Czech)
14. More Thai Students Interested in Learning ASEAN Languages Archived 2015-01-10 at the Wayback Machine. April 16, 2014. The Government Public Relations Department. Retrieved 2015-01-10.
15. Times, Vietnam (May 30, 2020). "More and more foreigners have need to learn Vietnamese". Vietnam Times.
16. Nguyen, Angie; Dao, Lien, eds. (May 18, 2007). "Vietnamese in the United States" (PDF). California State Library. p. 82. Archived from the original (PDF) on March 4, 2016. Retrieved January 10, 2015.
17. Lam, Ha (2008). "Vietnamese Immigration". In González, Josué M. (ed.). Encyclopedia of Bilingual Education. Thousand Oaks, California: Sage Publications. pp. 884–887. ISBN 978-1-4129-3720-7.
18. Vietnamese teaching and learning overwhelming Germany. Retrieved 2015-06-13.
19. School in Berlin maintains Vietnamese language. Retrieved 2015-06-13.
20. Blanc, Marie-Eve (2004), "Vietnamese in France", in Ember, Carol (ed.), Encyclopedia of Diasporas: Immigrant and Refugee Cultures Around the World, Springer, p. 1162, ISBN 978-0-306-48321-9
21. "Mon–Khmer languages: The Vietic branch". SEAlang Projects. Retrieved November 8, 2006.
22. Ferlus, Michel. 1996. Langues et peuples viet-muong. Mon-Khmer Studies 26. 7–28.
23. Hayes, La Vaughn H (1992). "Vietic and Việt-Mường: a new subgrouping in Mon-Khmer". Mon-Khmer Studies. 21: 211–228.
24. Diffloth, Gérard. (1992). "Vietnamese as a Mon-Khmer language". Papers from the First Annual Meeting of the Southeast Asian Linguistics Society, 125–128. Tempe, Arizona: Program for Southeast Asian Studies.
25. LaPolla, Randy J. (2010). ""Language Contact and Language Change in the History of the Sinitic Languages."". Procedia - Social and Behavioral Sciences. 2 (5): 6858–6868. doi:10.1016/j.sbspro.2010.05.036.
26. Phan, John (2013-01-28). "Lacquered Words: The Evolution Of Vietnamese Under Sinitic Influences From The 1St Century Bce Through The 17Th Century Ce". {{cite journal}}: Cite journal requires |journal= (help)
27. Phan, John D. & de Sousa, Hilário (2016). "(Paper presented at the International workshop on the history of Colloquial Chinese – written and spoken, Rutgers University, New Brunswick NJ, 11–12 March 2016.)" (PDF).{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: url-status (link)
28. Phan, John (2010). ""Re-Imagining 'Annam': A New Analysis of Sino–Viet–Muong Linguistic Contact"". Chinese Southern Diaspora Studies. 4: 3–24.
29. ^ Nguyen & Le (2020). "Japanese Loanwords Adopted into the Vietnamese Language" (PDF). Asian and African Languages and Linguistics. 14: 21.
30. Chung (2001). "Some returned loans, Japanese loanwords in Taiwan Mandarin". Language Change in East Asia: 161–179.
31. There are different descriptions of Hanoi vowels. Another common description is that of Thompson (1965):

    	Front	Central	Back
    			unrounded	rounded
    Centering	ia~iê		ưa~ươ	ua~uô
    Close	i		ư	u
    Close-mid	ê		ơ	ô
    Open-mid	e	ă	â	o
    Open		a

    This description distinguishes four degrees of vowel height and a rounding contrast (rounded vs. unrounded) between back vowels. The relative shortness of ă and â would then be a secondary feature. Thompson describes the vowel ă as being slightly higher (upper low) than a .

32. In Vietnamese, diphthongs are âm đôi.
33. The closing diphthongs and triphthongs as described by Thompson can be compared with the description above:

    	/w/ offglide		/j/ offglide
    Centering	iêu	ươu	ươi	uôi
    Close	iu	ưu	ưi	ui
    Close-mid	êu	– âu	ơi ây	ôi
    Open-mid	eo			oi
    Open		ao au	ai ay

34. The lack of diphthong consisting of a ơ + back offglide (i.e., ) is an apparent gap.
35. Called thanh điệu or thanh in Vietnamese
36. Note that the name of each tone has the corresponding tonal diacritic on the vowel.
37. Deborah, H.-F., W., H. B., & T., E. H. (2002). Characteristics of Vietnamese Phonology. American Journal of Speech-Language Pathology, 11(3), 264–273. https://doi.org/10.1044/1058-0360(2002/031)
38. Sources on Vietnamese variation include: Alves (forthcoming), Alves & Nguyễn (2007), Emeneau (1947), Hoàng (1989), Honda (2006), Nguyễn, Đ.-H. (1995), Pham (2005), Thompson (1991), Vũ (1982), Vương (1981).
39. Some differences in grammatical words are noted in Vietnamese grammar: Demonstratives, Vietnamese grammar: Pronouns.
40. ^ Desbarats, Jacqueline. "Repression in the Socialist Republic of Vietnam: Executions and Population Relocation". Indochina report; no. 11. Executive Publications, Singapore 1987. Retrieved 28 November 2013.
41. Table data from Hoàng (1989).
42. ^ In southern dialects, ch and tr are increasingly being merged as . Similarly, x and s are increasingly being merged as .
43. In southern dialects, v is increasingly being pronounced among educated speakers. Less educated speakers have more consistently throughout their speech.
44. Kirby (2011), p. 382.
45. Gregerson (1981) notes that this variation was present in de Rhodes's time in some initial consonant clusters: mlẽ ~ mnhẽ "reason" (cf. modern Vietnamese lẽ "reason").
46. Comparison note: As such its grammar relies on word order and sentence structure rather than morphology (in which word changes through inflection). Whereas European languages tend to use morphology to express tense, Vietnamese uses grammatical particles or syntactic constructions.
47. DeFrancis, John (1977). Colonialism and language policy in Viet Nam. Mouton. ISBN 978-90-279-7643-7.
48. Marr, David G. (1984). Vietnamese Tradition on Trial, 1920–1945. University of California Press. p. 145. ISBN 978-0-520-90744-7.
49. Jacques, Roland (2002). Portuguese Pioneers of Vietnamese Linguistics Prior to 1650 – Pionniers Portugais de la Linguistique Vietnamienne Jusqu'en 1650 (in English and French). Bangkok, Thailand: Orchid Press. ISBN 974-8304-77-9.
50. Trần, Quốc Anh; Phạm, Thị Kiều Ly (October 2019). Từ Nước Mặn đến Roma: Những đóng góp của các giáo sĩ Dòng Tên trong quá trình La tinh hoá tiếng Việt ở thế kỷ 17. Conference 400 năm hình thành và phát triển chữ Quốc ngữ trong lịch sử loan báo Tin Mừng tại Việt Nam. Hochiminh City: Committee on Culture, Catholic Bishops' Conference of Vietnam.
51. Ostrowski, Brian Eugene (2010). "The Rise of Christian Nôm Literature in Seventeenth-Century Vietnam: Fusing European Content and Local Expression". In Wilcox, Wynn (ed.). Vietnam and the West: New Approaches. Ithaca, New York: SEAP Publications, Cornell University Press. pp. 23, 38. ISBN 9780877277828.
52. admin (2014-02-05). "Vietnamese Language History". Vietnamese Culture and Tradition. Retrieved 2021-01-30.
53. "French Indochina 500 Piastres 1951". art-hanoi.com.
54. "North Vietnam 5 Dong 1946". art-hanoi.com.
55. Vũ Thế Khôi (2009). "Ai “bức tử” chữ Hán-Nôm?".
56. Sagart, Laurent (2008), "The expansion of Setaria farmers in East Asia", Past human migrations in East Asia: matching archaeology, linguistics and genetics, pp. 141–145
57. Ferlus, Michael (2009). "A Layer of Dongsonian Vocabulary in Vietnamese". Journal of the Southeast Asian Linguistics Society. 1: 105.
58. Alves, Mark (2019-05-10). "Data from Multiple Disciplines Connecting Vietic with the Dong Son Culture". {{cite journal}}: Cite journal requires |journal= (help)
59. DeFrancis (1977), p. 8.
60. Maspero, Henri (1912). "Études sur la phonétique historique de la langue annamite" [Studies on the phonetic history of the Annamite language]. Bulletin de l'École française d'Extrême-Orient (in French). 12 (1): 10. doi:10.3406/befeo.1912.2713.
61. Nguyễn, Đình-Hoà (2009), "Vietnamese", in Comrie, Bernard (ed.), The World's Major Languages (2nd ed.), Routledge, pp. 677–692, ISBN 978-0-415-35339-7.
62. ^ Ferlus, Michel (1992), "Histoire abrégée de l'évolution des consonnes initiales du Vietnamien et du Sino-Vietnamien", Mon–Khmer Studies, 20: 111–125.
63. ^ Ferlus, Michel (2009), "A layer of Dongsonian vocabulary in Vietnamese", Journal of the Southeast Asian Linguistics Society, 1: 95–109.
64. Ferlus, Michel (1982), "Spirantisation des obstruantes médiales et formation du système consonantique du vietnamien", Cahiers de Linguistique Asie Orientale, 11 (1): 83–106, doi:10.3406/clao.1982.1105.
65. ^ Thompson, Laurence C. (1976), "Proto-Viet–Muong Phonology", Oceanic Linguistics Special Publications, Austroasiatic Studies Part II, 13 (13), University of Hawai'i Press: 1113–1203, JSTOR 20019198.
66. Maasaki 2015, p. 143–155.
67. Gong 2019, p. 60.
68. Nguyen 2018, p. 162.
69. Gong 2019, p. 58–59.
70. Nguyễn Đ.-H. (1997)
71. Nguyễn Đ.-H. (1997: 29) gives the following context: "... a collaborator under the French administration was presented with a congratulatory panel featuring the two Chinese characters quần thần. This Sino-Vietnamese expression could be defined as bầy tôi meaning 'all the king's subjects'. But those two syllables, when undergoing commutation of rhyme and tone, would generate bồi tây meaning 'servant in a French household'."
72. www.users.bigpond.com/doanviettrung/noilai.html Archived 2008-02-22 at the Wayback Machine, Language Log's itre.cis.upenn.edu/~myl/languagelog/archives/001788.html, and tphcm.blogspot.com/2005/01/ni-li.html for more examples.
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75. ^ "10 từ lóng thường dùng của giới trẻ ngày nay". vnexpress.net. 2016-06-25.{{cite web}}: CS1 maint: url-status (link)
76. ^ "10 từ lóng thường dùng của giới trẻ ngày nay". vnexpress.net. 2016-06-25.{{cite web}}: CS1 maint: url-status (link)
77. "What is the difference between "nhé" and "nha, nghe, nhà, nhỉ" ? "nhé" vs "nha, nghe, nhà, nhỉ" ?". hinative.com. Retrieved 2021-03-14.
78. "Vã mồ hôi "giải mã" tiếng lóng tuổi teen - Xã hội - VietNamNet". vietnamnet.vn. Retrieved 2021-04-06.
79. "Lo ngại thực trạng sử dụng ngôn ngữ mạng trong học sinh". baoninhbinh.org.vn. 2018-12-07.{{cite web}}: CS1 maint: url-status (link)
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Bibliography

General

• Dương, Quảng-Hàm. (1941). Việt-nam văn-học sử-yếu . Saigon: Bộ Quốc gia Giáo dục.
• Emeneau, M. B. (1947). "Homonyms and puns in Annamese". Language. 23 (3): 239–244. doi:10.2307/409878. JSTOR 409878.
• Emeneau, M. B. (1951). Studies in Vietnamese (Annamese) grammar. University of California publications in linguistics (Vol. 8). Berkeley: University of California Press.
• Hashimoto, Mantaro. (1978). "Current developments in Sino-Vietnamese studies". Journal of Chinese Linguistics, 6, 1–26. JSTOR 23752818
• Nguyễn, Đình-Hoà. (1995). NTC's Vietnamese–English dictionary (updated ed.). NTC language dictionaries. Lincolnwood, Illinois: NTC Pub. Press.
• Nguyễn, Đình-Hoà. (1997). Vietnamese: Tiếng Việt không son phấn. Amsterdam: John Benjamins Publishing Company.
• Rhodes, Alexandre de (1991). L. Thanh; X. V. Hoàng; Q. C. Đỗ (eds.). Dictionarium Annamiticum Lusitanum et Latinum. Hanoi: Khoa học Xã hội.
• Thompson, Laurence C. (1991). A Vietnamese reference grammar. Seattle: University of Washington Press. Honolulu: University of Hawaii Press. (Original work published 1965)
• Uỷ ban Khoa học Xã hội Việt Nam. (1983). Ngữ-pháp tiếng Việt . Hanoi: Khoa học Xã hội.
• Nguyen, Dinh Tham (2018). Studies on Vietnamese Language and Literature: A Preliminary Bibliography. Cornell University Press. ISBN 978-1-501-71882-3.

Sound system

• Brunelle, Marc (2009). "Tone perception in Northern and Southern Vietnamese". Journal of Phonetics. 37 (1): 79–96. doi:10.1016/j.wocn.2008.09.003.
• Brunelle, Marc (2009). "Northern and Southern Vietnamese Tone Coarticulation: A Comparative Case Study" (PDF). Journal of Southeast Asian Linguistics. 1: 49–62. Archived from the original (PDF) on 2018-11-13.
• Kirby, James P. (2011). "Vietnamese (Hanoi Vietnamese)" (PDF). Journal of the International Phonetic Association. 41 (3): 381–392. doi:10.1017/S0025100311000181. S2CID 144227569.
• Michaud, Alexis (2004). "Final consonants and glottalization: New perspectives from Hanoi Vietnamese". Phonetica. 61 (2–3): 119–146. doi:10.1159/000082560. PMID 15662108. S2CID 462578.
• Nguyễn, Văn Lợi; Edmondson, Jerold A (1998). "Tones and voice quality in modern northern Vietnamese: Instrumental case studies". Mon–Khmer Studies. 28: 1–18.
• Thompson, Laurence E (1959). "Saigon phonemics". Language. 35 (3): 454–476. doi:10.2307/411232. JSTOR 411232.

Language variation

• Alves, Mark J. 2007. "A Look At North-Central Vietnamese" In SEALS XII Papers from the 12th Annual Meeting of the Southeast Asian Linguistics Society 2002, edited by Ratree Wayland et al. Canberra, Australia, 1–7. Pacific Linguistics, Research School of Pacific and Asian Studies, The Australian National University
• Alves, Mark J.; & Nguyễn, Duy Hương. (2007). "Notes on Thanh-Chương Vietnamese in Nghệ-An province". In M. Alves, M. Sidwell, & D. Gil (Eds.), SEALS VIII: Papers from the 8th annual meeting of the Southeast Asian Linguistics Society 1998 (pp. 1–9). Canberra: Pacific Linguistics, The Australian National University, Research School of Pacific and Asian Studies
• Hoàng, Thị Châu. (1989). Tiếng Việt trên các miền đất nước: Phương ngữ học . Hà Nội: Khoa học xã hội.
• Honda, Koichi. (2006). "F0 and phonation types in Nghe Tinh Vietnamese tones". In P. Warren & C. I. Watson (Eds.), Proceedings of the 11th Australasian International Conference on Speech Science and Technology (pp. 454–459). Auckland, New Zealand: University of Auckland.
• Pham, Andrea Hoa. (2005). "Vietnamese tonal system in Nghi Loc: A preliminary report". In C. Frigeni, M. Hirayama, & S. Mackenzie (Eds.), Toronto working papers in linguistics: Special issue on similarity in phonology (Vol. 24, pp. 183–459). Auckland, New Zealand: University of Auckland.
• Vũ, Thanh Phương. (1982). "Phonetic properties of Vietnamese tones across dialects". In D. Bradley (Ed.), Papers in Southeast Asian linguistics: Tonation (Vol. 8, pp. 55–75). Sydney: Pacific Linguistics, The Australian National University.
• Vương, Hữu Lễ. (1981). "Vài nhận xét về đặc diểm của vần trong thổ âm Quảng Nam ở Hội An" . In Một Số Vấn Ðề Ngôn Ngữ Học Việt Nam (pp. 311–320). Hà Nội: Nhà Xuất Bản Ðại Học và Trung Học Chuyên Nghiệp.

Pragmatics

• Luong, Hy Van. (1987). "Plural markers and personal pronouns in Vietnamese person reference: An analysis of pragmatic ambiguity and negative models". Anthropological Linguistics, 29(1), 49–70. JSTOR 30028089
• Sophana, Srichampa (2004). "Politeness strategies in Hanoi Vietnamese speech". Mon–Khmer Studies. 34: 137–157.
• Sophana, Srichampa (2005). "Comparison of greetings in the Vietnamese dialects of Ha Noi and Ho Chi Minh City". Mon–Khmer Studies. 35: 83–99.

Historical and comparative

• Alves, Mark J. (2001). "What's So Chinese About Vietnamese?" (PDF). In Thurgood, Graham W. (ed.). Papers from the Ninth Annual Meeting of the Southeast Asian Linguistics Society. Arizona State University, Program for Southeast Asian Studies. pp. 221–242. ISBN 978-1-881044-27-7.
• Cooke, Joseph R. (1968). Pronominal reference in Thai, Burmese, and Vietnamese. University of California publications in linguistics (No. 52). Berkeley: University of California Press.
• Ferlus, Michael (2009). "A Layer of Dongsonian Vocabulary in Vietnamese". Journal of the Southeast Asian Linguistics Society. 1: 95–108.
• Gong, Xun (2019). "Chinese loans in Old Vietnamese with a sesquisyllabic phonology". Journal of Language Relationship. 17 (1–2): 55–72. doi:10.31826/jlr-2019-171-209. S2CID 212689052.
• Gregerson, Kenneth J. (1969). "A study of Middle Vietnamese phonology". Bulletin de la Société des Etudes Indochinoises, 44, 135–193. (Reprinted in 1981).
• Maasaki, Shimizu (2015). "A Reconstruction of Ancient Vietnamese Initials Using Chữ Nôm Materials". NINJAL Research Papers. 9 (1–2): 135–158. doi:10.15084/00000465.
• Maspero, Henri (1912). "Etudes sur la phonétique historique de la langue annamite. Les initiales". Bulletin de l'École française d'Extrême-Orient. 12 (1): 1–124. doi:10.3406/befeo.1912.2713.
• Nguyễn, Đình-Hoà (1986). "Alexandre de Rhodes' dictionary". Papers in Linguistics. 19: 1–18. doi:10.1080/08351818609389247.
• Sagart, Laurent (2008), "The expansion of Setaria farmers in East Asia", in Sanchez-Mazas, Alicia; Blench, Roger; Ross, Malcolm D.; Ilia, Peiros; Lin, Marie (eds.), Past human migrations in East Asia: matching archaeology, linguistics and genetics, Routledge, pp. 133–157, ISBN 978-0-415-39923-4
• Shorto, Harry L. edited by Sidwell, Paul, Cooper, Doug and Bauer, Christian (2006). A Mon–Khmer comparative dictionary. Canberra: Australian National University. Pacific Linguistics. ISBN
• Thompson, Laurence E (1967). "The history of Vietnamese final palatals". Language. 43 (1): 362–371. doi:10.2307/411402. JSTOR 411402.

Orthography

• Haudricourt, André-Georges (1949). "Origine des particularités de l'alphabet vietnamien". Dân Việt-Nam. 3: 61–68.
  • English translation: Michaud, Alexis; Haudricourt, André-Georges (2010). "The origin of the peculiarities of the Vietnamese alphabet". Mon-Khmer Studies. 39: 89–104.
• Nguyễn, Đình-Hoà. (1955). Quốc-ngữ: The modern writing system in Vietnam. Washington, DC: Author.
• Nguyễn, Đình-Hoà (1990). "Graphemic borrowing from Chinese: The case of chữ nôm, Vietnam's demotic script". Bulletin of the Institute of History and Philology, Academia Sinica. 61: 383–432.
• Nguyễn, Đình-Hoà. (1996). Vietnamese. In P. T. Daniels, & W. Bright (Eds.), The world's writing systems, (pp. 691–699). New York: Oxford University Press. ISBN 978-0-19-507993-7.

Pedagogical

• Nguyen, Bich Thuan. (1997). Contemporary Vietnamese: An intermediate text. Southeast Asian language series. Northern Illinois University, Center for Southeast Asian Studies.
• Healy, Dana. (2004). Teach Yourself Vietnamese. Teach Yourself. Chicago: McGraw-Hill. ISBN
• Hoang, Thinh; Nguyen, Xuan Thu; Trinh, Quynh-Tram; (2000). Vietnamese phrasebook, (3rd ed.). Hawthorn, Vic.: Lonely Planet. ISBN
• Moore, John. (1994). Colloquial Vietnamese: A complete language course. London: Routledge.
• Nguyễn, Đình-Hoà. (1967). Read Vietnamese: A graded course in written Vietnamese. Rutland, Vermont: C.E. Tuttle.
• Lâm, Lý-duc; Emeneau, M. B.; von den Steinen, Diether. (1944). An Annamese reader. Berkeley: University of California, Berkeley.
• Nguyễn, Đăng Liêm. (1970). Vietnamese pronunciation. PALI language texts: Southeast Asia. Honolulu: University of Hawaii Press.

External links

Online lessons

• Online Vietnamese lessons from Northern Illinois University

Vocabulary

• Vietnamese Vocabulary List (from the World Loanword Database)
• Swadesh list of Vietnamese basic vocabulary words (from Wiktionary's Swadesh-list appendix)

Language tools

• The Vietnamese keyboard its layout is compared with US, UK, Canada, France, and Germany's keyboards.
• The Free Vietnamese Dictionary Project

Research projects and data resources

• rwaai | Projects RWAAI (Repository and Workspace for Austroasiatic Intangible Heritage)
• http://hdl.handle.net/10050/00-0000-0000-0003-93ED-5@view Vietnamese in RWAAI Digital Archive

• Vietnamese language
• Analytic languages
• Isolating languages
• Languages of Vietnam
• Languages of Cambodia
• Languages of China
• Languages of the Czech Republic
• Subject–verb–object languages
• Vietic languages
• Tonal languages in non-tonal families