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ISO basic Latin alphabet
AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz
v t e

The letter A is the first letter in the Latin alphabet. Its name in English is a (/eɪ/), plural aes, as, or a's.

History

a vowel. See a, an.

A- also is a prefix that serves to negate the morpheme to which it is attached, such as amoral, apolitical, etc. This derives from Greek.

Codes for computing

class="template-letter-box | In Unicode the capital A is codepoint U+0041 and the lowercase a is U+0061.

In Hex, A is the character used to represent decimal 10, or in binary, 01010

The ASCII code for capital A is 65 and for lowercase a is 97; or in binary 01000001 and 01100001, respectively.

The EBCDIC code for capital A is 193 and for lowercase a is 129.

The morse code for A is dit dah or a dot and a dash.

The numeric character references in HTML and XML are "A" and "a" for upper and lower case respectively.

References

1. "a," Merriam-Webster's Third New International Dictionary of the English Language, Unabridged, (1993)
2. Merriam-Webster's Manual for Writers and Editors p. 61 (1998); Chicago Manual of Style, 15th ed. (University of Chicago Press, 2003) p. 281

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See also

• Alpha
• Cyrillic A
• ª
• Ã
• Ä
• Å (Aa)
• Æ
• Ă
• ∀

• Latin letters
• Vowel letters