- a word formed from the initial letters or groups of letters of words in a set phrase or series of words and pronounced as a separate word, as Wac from Women's Army Corps,OPEC from Organization of Petroleum Exporting Countries, or loran from long-range navigation.
- initialism (def. 1).
- an acrostic.
- to make an acronym of: The committee's name has been acronymed MIKE.
- a pronounceable name made up of a series of initial letters or parts of words; for example, UNESCO for the United Nations Educational, Scientific, and Cultural Organization
