a a

Origin

antiaircraft artillery.

Associate in Accounting.

Dictionary.com Unabridged

noun

an organization of alcoholics whose purpose is to stay sober and help others recover from the disease of alcoholism. Abbreviation: AA, A.A.

noun

a degree granted especially by junior colleges after completion of two years of study. Abbreviation: A.A.

Also called associate's degree.

noun

a correction or change made in typeset copy that is not a correction of an error introduced by the compositor. Abbreviation: AA, A.A., a.a., aa

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Etymonline

Word Origin & History

A.A.

abbreviation of Alcoholics Anonymous, attested by 1941, Amer.Eng. The group name was the title of a book published in 1938 by the founder, Bill W.

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