from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Antiaircraft artillery.
- n. Antiaircraft fire.
Citing 'ack-acks' as the soldier's term for antiaircraft guns and 'roller skates' as lingo for tanks, Prof. George B. Franklin of Boston University pointed out today that military jargon would multiply with the training camps and that some of this wartime coinage would stick in the language.
The job of protecting the beaches at night has been given over to the antiaircraft artillery, or ack-ack.
The pilots reported that they encountered ineffective ack-ack fire in the first flights but even this fire gradually was reduced, probably as batteries were knocked out by the shattering fire.
'Ack-ack' seems like onomatopoeia, but it’s also British telephone code for 'AA,' which is the abbreviation for 'antiaircraft.'