- antiaircraft fire.
- antiaircraft arms.
Origin of ack-ack
Examples from the Web for ack-ack
Historical Examples of ack-ack
That was a score for the Ack-Ack gunners and the ground boys.
"The ack-ack will knock those planes out of the sky," one of the sailors said.The Lost Warship
Robert Moore Williams
The Jerries were at it again and seemed to have slipped inside the balloons and the ring of Ack-Ack guns.
- anti-aircraft fire
- (as modifier)ack-ack guns
- anti-aircraft arms
Word Origin for ack-ack
Word Origin and History for ack-ack
1939, representing A.A., the military abbreviation for anti-aircraft (see ack).