Military , informal
Antiaircraft gunfire: [as modifier]: a quick burst of ack-ack fire
More example sentences
- Keating and the officers and men went to sleep under clean skies, a sleep disturbed by the angry bark of ack-ack batteries and the drone of German planes looking for the beaches.
- But the war grew wings and swept on and except for one Ju 88 who buzzed the field without biting yet drew 5000 rounds from the eager ack-ack boys.
- The flight across the Channel was uneventful, but as soon as the formation crossed into German territory, ack-ack started opening up.
World War II: signalers' name for the letters AA.
Definition of ack-ack in:
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