acronym

/ˈækrəˌnɪm/
noun
  1. A word formed from the first letters of a group of words, such as NASA (National Aeronautics and Space Administration) or radar (radio detection and ranging).
    • The teacher explained that 'LOL' is a common internet acronym.
    • The company's name is an acronym for its five founding members.
    • Many people don't realize that 'scuba' is actually an acronym.
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