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a.k.a.

or AKA, aka

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  1. also known as: According to police records he is Joe Smith a.k.a. “Baby Face Smith” and Joseph Smathers.
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Origin of a.k.a.

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for a.k.a.

a.k.a.

AKA

abbreviation for
  1. also known as
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for a.k.a.

also aka, initialism for also known as; attested in legal documents from at least 1936.

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Online Etymology Dictionary, © 2010 Douglas Harper