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ack-ack

[ak-ak] /ˈækˌæk/
noun, Informal. (esp. during World War II)
1.
antiaircraft fire.
2.
antiaircraft arms.
Also, Ack-Ack.
Origin
1935-1940
1935-40; for A.A. (abbreviation of a(nti) a(ircraft)) as said by British signalmen referring to sense 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ack ack

ack-ack

/ˈækˌæk/
noun (military)
1.
  1. anti-aircraft fire
  2. (as modifier): ack-ack guns
2.
anti-aircraft arms
Word Origin
C20: British army World War I phonetic alphabet for AA, abbreviation of anti-aircraft
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
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Word Origin and History for ack ack

ack-ack

1939, representing A.A., the military abbreviation for anti-aircraft (see ack).

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for ack ack

ack-ack

modifier

: ack-ack positions

noun

Antiaircraft gun or guns; antiaircraft fire; aa, flak (WWI)


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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