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acronym

noun [C]
 
 
/ˈæk.rə.nɪm/

Definition

an abbreviation consisting of the first letters of each word in the name of something, pronounced as a word: AIDS is an acronym for 'Acquired Immune Deficiency Syndrome'.Terminology and vocabulary
(Definition of acronym noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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