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Blue tickThis page documents an English Misplaced Pages content guideline.
Editors should generally follow it, though exceptions may apply. Substantive edits to this page should reflect consensus. When in doubt, discuss first on this guideline's talk page.		Shortcuts
This page in a nutshell: When an article title could refer to several things, a disambiguation page is needed. When the title usually means one thing but also has other meanings, add disambiguation links to the primary topic's article.

Disambiguation in Misplaced Pages is the process of resolving conflicts in article titles that occur when a single term can be associated with more than one topic, making that term likely to be the natural title for more than one article. In other words, disambiguations are paths leading to different articles which could, in principle, have the same title.

For example, the word "Mercury" can refer to several different things, including: an element, a planet, an automobile brand, a record label, a NASA manned-spaceflight project, a plant, and a Roman god. Since only one Misplaced Pages page can have the generic name "Mercury", unambiguous article titles must be used for each of these topics: Mercury (element), Mercury (planet), Mercury (automobile), Mercury Records, Project Mercury, Mercury (plant), Mercury (mythology). There must then be a way to direct the reader to the correct specific article when an ambiguous term is referenced by linking, browsing or searching; this is what is known as disambiguation. In this case it is achieved using Mercury as a disambiguation page.

Two different methods of disambiguating are discussed here:

  • disambiguation links — at the top of an article, a note that links the reader to Misplaced Pages articles with similar titles or concepts that the reader may have been seeking instead of the article in which the links appear.
  • disambiguation pages — non-article pages that serve only to refer users to other Misplaced Pages pages.
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Disambiguation

Deciding to disambiguate

Ask yourself: When readers enter a given term in the Misplaced Pages search box and clicks "Go", what article would they most likely be expecting to view as a result? For example, when someone looks up Joker, would they expect to find information on comedians? On a card? On Batman's nemesis? On the hit song or album by The Steve Miller Band? When more than one possibility exists, there should be a way for readers to find their way quickly from the page whose title is that term to any of the articles which might reasonably be called by that term. Either the top of the page should have one or more disambiguation links, or the page itself should be a disambiguation page.

Is there a primary topic?

Shortcuts

When there is a well-known primary topic for an ambiguous term or phrase, much more used than any other (significantly more commonly searched for and read than other meanings), then that term or phrase should be used for the title of the article on that topic. That article should have a disambiguation link at the top, and the disambiguation page should link back to the primary topic.

If there is extended discussion about which article truly is the primary topic, that may be a sign that there is in fact no primary topic, and that the disambiguation page should be located at the plain title with no "(disambiguation)".

Tools that may help determine a primary meaning (but are not determining factors by themselves):

  1. Incoming wikilinks from Special:WhatLinksHere
  2. Misplaced Pages article traffic statistics from http://stats.grok.se/en/
  3. Google web, news, scholar, or book searches from http://www.google.com/

Naming the specific topic articles

For disambiguating specific topic pages, several options are available:

  1. When there is another term (such as Pocket billiards instead of Pool) or more complete name that is equally clear (such as Delta rocket instead of Delta), that should be used.
  2. A disambiguating word or phrase can be added in parentheses. The word or phrase in parentheses should be:
  3. Rarely, an adjective describing the topic can be used, but it is usually better to rephrase the title to avoid parentheses.
Simplicity

If there is a choice between disambiguating with a generic class or with a context, choose whichever is simpler. Use the same disambiguating phrase for other topics within the same context.

For example, "(mythology)" rather than "(mythological figure)".

If there is a choice between using a short phrase and word with context, there is no hard rule about which is preferred. Both may be created, with one redirecting to the other.

For example, Mathematical analysis and Analysis (mathematics).
Biographies

For biographies, it is generally preferred to use a formal disambiguating noun that describes the person, rather than an activity, profession, genre, or affiliation. Do not use a date or range of dates (it is much more likely that a reader will be seeking this information than that she already knows it).

For example, Sam Biguation (guitarist), not Sam Biguation (rocker), Sam Biguation (music), Sam Biguation (rock music), Sam Biguation (the Southwest Spice Band), Sam Biguation (1974–2006), nor (per the simplicity principle above) Sam Biguation (rock guitarist), unless Sam Biguation (guitarist) itself needs to be disambiguated between Sam Biguation (classical guitarist) and Sam Biguation (rock guitarist).

By Misplaced Pages consensus, there are limited exceptions in a few areas, the most common one being the use of the informal "(footballer)" for players of football (soccer) (and never for rugby, American football, etc.). If in doubt, use the existing convention for disambiguated biographical articles of the same general type as the article you are disambiguating (even if you disagree with it).

Fiction

When the context is a novel or other creative work, such as with articles about fictional characters, avoid lots of little stubs about fictional characters: check your fiction.

Format

To conform to the naming conventions, the phrase in parentheses should be treated just as any other word in a title: normally lowercase, unless (like a book title) it is a proper noun that always appears capitalized even in running text.

For more on which word or phrase to insert in the parentheses, see Misplaced Pages:Naming conventions and Misplaced Pages talk:Naming conventions. For common disambiguation words, see User:Kevinkor2/Research into names of Misplaced Pages articles.

Disambiguation links

Main page: Misplaced Pages:Hatnotes

Users searching for what turns out to be an ambiguous term may not reach the article they expected. Therefore, any article with an ambiguous title should contain helpful links to alternative Misplaced Pages articles placed at the top of the article by using one of the templates shown below. Their parameters are described in Template talk:Otheruses4 and illustrated at Misplaced Pages:Otheruses templates (example usage).

For example, the article about Atlas Shrugged contains a disambiguation link to the in-development film Atlas Shrugged:

For the film, see Atlas Shrugged (film).

This is generated by entering: {{For|the film|Atlas Shrugged (film)}}.

(Note that the link is generated automatically, so double square brackets should not be used within this template.)

When there are several articles associated with the same ambiguous term, include a link to a separate disambiguation page. If there is a disambiguation page for the topic and its name consists of the generic topic name with " (disambiguation)" added to it, use the {{Otheruses}} template. For example, if {{otheruses}} is used on a page titled Topic, then the following text is generated:

For other uses, see Topic (disambiguation).

Note that in this case the disambiguation page does not exist. If this happens when you try to use the template, either use another variant, as described below, or create the disambiguation page yourself.

A number of variations on these templates have been created to ensure the uniform appearance of disambiguation links.

{{Otheruses2|Article title}}
This template requires an article title to be specified as a parameter, and adds " (disambiguation)" to it. For example, if you specify the article title "Derivative" it would read:

Template:Otheruses2

{{Otheruses3|Article title}}
Similar to {{Otheruses2}}, but does not add " (disambiguation)" after the article title:
For other uses, see Derivative.
{{Otheruses4|this topic|another topic|Article title}}
Used to describe and distinguish other topics from that of the current page. For example, if the parameter names above are used as-is in the template call, the result would be:
This page is about this topic. For another topic, see Article title.
{{Otheruses-number}}
In an article about a year, this template provides a link to the corresponding article about the number. For example, when placed in the article about the year 1000, this template call would result in:
This page is about the year 1000. For other uses, see 1000 (number).
{{Otherplaces}}
Analogous to {{Otheruses}}, but for place names. When used on this page, it results in:
For other places with the same name, see Misplaced Pages:Disambiguation (disambiguation).
{{Otherplaces2|Article title}}
Analogous to {{Otheruses2}}, but for place names. When the article title "Derby" is specified, for example, it results in:

Template:Otherplaces2

{{Otherpersons}}
Analogous to {{Otheruses}}, but for names of people. When used on this page, it results in:
For other people named Disambiguation, see Disambiguation (disambiguation).
{{Redirect|Redirected page title}}
Used when an article is the target of a redirect having a relatively common name. For example, the template call {{Redirect|Bach}} may be used in the article on Johann Sebastian Bach, resulting in:
"Bach" redirects here. For other uses, see Bach (disambiguation).

A longer, but incomplete list of disambiguation templates is found at Misplaced Pages:Template messages/General#Disambiguation and redirection; further style information is given at Misplaced Pages:Hatnotes#Templates. Many more templates are listed in Category:Disambiguation and redirection templates.

Usage guidelines

  • Do not pipe disambiguation links. Showing the entire linked article title avoids confusion, which is the reason for the link in the first place.
  • As noted above, disambiguation links should be placed at the very top of an article, where they are most visible. For alternatives that are related to the article but are not a source of ambiguity, the "See also" section at the end of the article is more appropriate.
  • There is no need to add disambiguation links to a page whose name already clearly distinguishes itself from the generic term. For example, Solaris (1972 film) is clearly about one specific movie and not about any of the many other meanings of "Solaris". It is very unlikely that someone arriving there would have been looking for any other "Solaris", so it is unnecessary to add a link pointing to the Solaris disambiguation page. However, it would be perfectly appropriate to add a link to Solaris (novel) (but not, say, Solaris (operating system)) to its "See also" section.
  • See Misplaced Pages:Hatnotes for other guidelines on the proper use of disambiguation links.

Disambiguation pages

Combining terms on disambiguation pages

A single disambiguation page may be used to disambiguate a number of similar terms. Sets of terms which are commonly so combined include:
  • Terms which differ only in capitalization, punctuation and diacritic marks. For example, the terms Oe, Ōe, OE and O.E. are disambiguated on a single page (Oe).
  • Corresponding singular, plural and possessive forms. For example, the terms Eagle Nest, Eagle's Nest and Eagle Nests all appear at Eagle's Nest.
  • Variant spellings. For example, Honor and Honour both appear at Honor (disambiguation).
  • Variant forms of names. For example, Fred Smith also includes persons named Frederick Smith.
  • Terms which differ by the presence or absence of an article. For example, Cure also contains instances of The Cure.
Editorial judgement should be used in deciding whether to combine terms in the ways described above. If a combined disambiguation page would be inconveniently long, it may be better to split the different spellings into separate pages.
When a combined disambiguation page is used, redirects to it (or hatnotes, as appropriate) should be set up from all the terms involved.

Page naming conventions

Shortcut See also: WP:Naming conventions

The title of a disambiguation page is the ambiguous term itself, provided there is no primary topic for that term. If there is a primary topic, then the tag "(disambiguation)" is added to the name of the disambiguation page, as in Jupiter (disambiguation). It is also acceptable to create a page at "Term ABC (disambiguation)" that redirects to a disambiguation page at "Term ABC". This type of redirect can be used to indicate deliberate links to the disambiguation page.

When a disambiguation page combines several similar terms, one of them must be selected as the title for the page (with the "(disambiguation)" tag added if a primary topic exists for that term); the choice should be made in line with the following principles:

  • A word is preferred to an abbreviation. For example, the disambiguation page for Arc and ARC is named Arc.
  • English spelling is preferred.
  • Singulars are preferred to plurals.
  • The simplest form of the term is preferred to those containing punctuation, diacritics and articles; for example SA is preferred to S.A., and Shadow (disambiguation) is preferred to The Shadow (disambiguation).
  • The spelling that reflects the majority of items on the page is preferred to less common alternatives.

Page style

Main page: Misplaced Pages:Manual of Style (disambiguation pages)

Each disambiguation page comprises a list (or multiple lists, for multiple senses of the term in question) of similarly-titled links.

  • Link to the primary topic (if there is one):
A school is an institution for learning.
  • Start each list with a short introductory sentence fragment with the title in bold, and ending with a colon. For example:
Blockbuster may refer to:
  • Try to start each entry in the list with a link to the target page.
  • Each bulleted entry should, in almost every case, have exactly one navigable (blue) link; including more than one link can confuse the reader.
  • Do not pipe the name of the links to the articles being listed. (See exceptions)
  • Only include related subject articles if the term in question is actually described on the target article. (For example, the Canton disambiguation page legitimately has an entry for Flag terminology.)

Include the template {{disambig}} (or other disambiguation template, such as {{Geodis}} or {{Hndis}}) at the bottom as an indicator of the page's status. Following the template, include any of the standard categories as appropriate.

For a prime example of an actual disambiguation page, see Lift.

What not to include

Dictionary definitions

A disambiguation page is not a list of dictionary definitions. A short description of the common general meaning of a word can be appropriate for helping the reader determine context. Otherwise, there are templates for linking the reader to Wiktionary, the wiki dictionary; see Misplaced Pages:Wikimedia sister projects#Wiktionary.

Duplicate topics

Disambiguation should not be confused with the merging of duplicate articles (articles with different titles, but regarding the very same topic, for example "gas turbine" and "combustion turbine", or "restroom" and "washroom"). These are handled with Misplaced Pages:Redirects.

Partial title matches

Do not add links that merely contain part of the page title, or links that include the page title in a longer proper name, where there is no significant risk of confusion. Only add links to articles that could use essentially the same title as the disambiguated term. Disambiguation pages are not search indices.

Set index articles

Shortcut

A set index article is a list article about a set of items that share the same (or similar) name. It is different from a disambiguation navigation page, and should not share the same formatting nor be considered a true disambiguation page:

For more information specifically about set index articles for ships, see Misplaced Pages:WikiProject Ships/Guidelines#Index pages.

Sister projects

Disambiguation descriptions should not be created for subjects whose only articles are on pages of sister projects, even if the disambiguation page already exists (e.g., the poll on 9/11 victims). Subjects that have articles on both Misplaced Pages and sister projects are, of course, fine.

Summary or multi-stub pages

Several small topics of just a paragraph or so each can co-exist on a single page, separated by headings. Although this is similar to a disambiguation page, the disambiguation notice should not be put here, as the page doesn't link to other articles closely associated with a specific term.

As each section grows, there may come a time when a subject should have a page of its own. (See Misplaced Pages:Article size and Misplaced Pages:Summary style.)

Although many pages rely on this principle, it has become more common for each subject to have a separate page for its own stub.

Always use {{split}} or {{splitsection}}, and reach consensus before attempting the split. Misplaced Pages:Be bold in updating pages doesn't apply, as it is very difficult to revert a split, often requiring extensive assistance by administrators.

Preparation

Before constructing a new disambiguation page, determine a Specific topic name for any and all existing pages, and a generic name for the disambiguation page. Move any page with a conflicting title (i.e. the same exact title) to its more specific name. Use the What links here list for the moved page to update all of the pages that link to that page (more likely than not, a link in Misplaced Pages will point to your new disambiguation page unnecessarily, and this should be resolved on a case-by-case basis).

Construction

Assuming a Generic topic page, use the What links here list of the moved page to access the redirect page created by the move, and replace that redirect page with the new disambiguation page.

Use the new disambiguation page to find and replace any old disambiguation links in existing pages with a link to the new disambiguation page.

Note that the standard link templates will actually point to a Term XYZ (disambiguation) version of the new name. Use the red-link on an existing page to create a redirect page marked with the {{R to disambiguation page}} template. For example, Term XYZ (disambiguation) could be redirected to the new disambiguation page Term XYZ as follows: 

#REDIRECT ] {{R to disambiguation page}}

Links

Double disambiguation

A double disambiguation is a link to a disambiguation page from another disambiguation page. This kind of disambiguation is typically more specific than one with a simplified name. This kind of disambiguation is relatively rare on Misplaced Pages.

For example, Montgomery is a disambiguation page that leads to Montgomery County, a secondary disambiguation page.

Incomplete disambiguation

When a more specific title is still ambiguous, but not enough so to call for double disambiguation, it should redirect back to the main disambiguation page (or a section of it). This aids navigation, and helps editors to avoid creating new articles under the ambiguous title by accident.

Such redirects should be marked with {{R from incomplete disambiguation}} (which places them under Category:Redirects from incomplete disambiguations). For example, Aurora (album) could redirect as follows: 

#REDIRECT ] {{R from incomplete disambiguation}}

Interlanguage links

Pure disambiguation pages should contain interlanguage links only where a similar problem of disambiguation exists in the target language; that is, they should not point to a single meaning from the list of meanings, but to another disambiguation page.

Links to disambiguated topics

A code of honor for creating disambiguation pages is to fix all resulting mis-directed links.

Before creating a disambiguation page, click on What links here to find all of the pages that link to the page that is about to change. Make sure that those pages are fixed and that they won't be adversely affected when performing the {{split}} or {{splitsection}}.

When repairing a link, use pipe syntax so that the link does not contain the new qualifier.

For example, when renaming Topic Name to Topic Name (qualifier), ] will render as Topic Name just like the original.

A shorter alternative is to use empty pipe syntax, also known as the pipe trick. This allows editors to leave out the piped alternative when editing.

For example, typing "]" will automatically produce "]". Read Help:Pipe trick for more information.

Ambiguous links are periodically checked and repaired, but even if some ambiguous links remain, one of the primary reasons for making a disambiguation page is so that following such links will still be useful to the reader.

There is a tool to facilitate ambiguous link repair in the Python Misplaced Pages Robot. The bot offers to update links to choices listed on the disambiguation page. Don't forget to post a notice on the Misplaced Pages talk:Bots page.

Links to disambiguation pages

With very few exceptions, creating links to disambiguation pages is erroneous. Links should instead point to a relevant article. The purpose of a disambiguation page is to give a user who has typed an ambiguous term into the search box a list of articles that are likely to be what he's looking for. The exceptions to this are:

To link to a disambiguation page (instead of a specific meaning), link to the redirect to the disambiguation page that includes the text "(disambiguation)" in the title (such as, America (disambiguation) rather than America). This helps distinguish accidental links to the disambiguation page from intentional ones. See Category:Redirects to disambiguation pages.

The Misplaced Pages software has a feature that lists "orphan" pages; that is, no other page links to them. But for disambiguation pages, that's perfectly correct: we usually want pages to link to the more specific pages.

In order to make the orphans list more useful by not cluttering it with intentional orphans, disambiguation pages are linked from:

When you create a disambiguation page, add a link to it in one of those pages as appropriate.

Category:Disambiguation provides a complete list of disambiguation pages.

Disambiguation of CJKV character names

Main page: Misplaced Pages:WikiProject Disambiguation/CJKV taskforce

Common CJKV character (Chinese character) names should redirect to their corresponding acceptable article name per Misplaced Pages:Naming conventions (use English) as much as possible. However, if a CJKV name maps to multiple Misplaced Pages articles, disambiguation is required, and all the normal rules for Misplaced Pages:Disambiguation apply.

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