Dictionary.com

ack-ack

or Ack-Ack

[ ak-ak ]
/ ˈækˌæk /
Save This Word!

noun Informal.(esp. during World War II)
antiaircraft fire.
antiaircraft arms.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of ack-ack

1935–40; for A.A. (abbreviation of a(nti)a(ircraft)) as said by British signalmen referring to sense 2

Words nearby ack-ack

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use ack-ack in a sentence

British Dictionary definitions for ack-ack

ack-ack
/ (ˈækˌæk) /

noun military
  1. anti-aircraft fire
  2. (as modifier)ack-ack guns
anti-aircraft arms

Word Origin for ack-ack

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
FEEDBACK