Wikipedia:Disambiguation and abbreviations (WP:TLA)

Abbreviations, acronyms, and initialisms are likely to be ambiguous, needing disambiguation. Thus abbreviations should usually be expanded (see Naming conventions (abbreviations)) beforehand. For two- and three-letter combinations, there is generally a list detailing a few or many possible uses.  If there is an article that is named that way (e.g. SI, Ur, pH), the page should be used for the article at one of these pages, rather than the page with the abbreviations. Abbreviations pages are a type of disambiguation (see Wikipedia:Disambiguation). Usually, there should be just one page for all cases (upper- or lower-case), e.g. MB for MB, mB, mb, Mb. If the case of the abbreviation is important (e.g. for SI Units, symbols for chemical elements), the exact one should be noted. In the sample above: atomic units (au), gold (Au), astronomical unit (AU). See also MB. For two-letter combinations, if there is no article, the page is usually placed at the uppercase version (BA), the lowercase (Ba) redirecting there. Abbreviations with dots usually redirect to the "undotted" version, e.g., DC., D.C, D.C., D. C. could redirect to DC. 2-letter Wikipedia:List of two-letter combinations 3-letter see TLA Wikipedia:TLAs from AAA to DZZ Wikipedia:TLAs from EAA to HZZ Wikipedia:TLAs from IAA to LZZ Wikipedia:TLAs from MAA to PZZ Wikipedia:TLAs from QAA to TZZ Wikipedia:TLAs from UAA to XZZ Wikipedia:TLAs from YAA to ZZZ The following group undisambiguated abbreviations in the Wikipedia namespace. It can be helpful to make sure that the abbreviation links to the abbreviated article title (if such an article exists).  List of organizations with .int domain names List of acronyms List of computing and IT abbreviations List of government and military acronyms