This is a glossary of terms commonly used on Wikipedia.

For abbreviations often used in edit summaries, see Wikipedia:Edit summary legend.
For common shorthands used in Articles for Deletion (AfD), see the Wikipedia:Guide to deletion.
For a list of common abbreviations used within Wikipedia see Wikipedia abbreviations.
For common abbreviations and slang phrases outside Wikipedia, see Appendix:English Internet slang.
See also Wikipedia:Manual of Style/Glossaries, Wikipedia:Manual of Style (abbreviations), Wikipedia:WikiProject Glossaries, and List of acronyms.
For other useful directories and indexes, see Wikipedia:Directory.
For the use of terms in articles, see Wikipedia:Manual of Style#Words as words.
WP:GLOSS redirects here; for the formatting of translation glosses like chien 'dog', see MOS:SINGLE.