ack-ack gun
- noun
- /ˈækˌæk ɡʌn/
- Archaic
- The soldiers manned the ack-ack gun to defend against enemy aircraft overhead.
Examples
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What, because he went in without orders and pranged some ack-ack guns?
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During the battle, the sound of the ack-ack gun could be heard as it fired at approaching planes.
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You firing the ack-ack gun?
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The ground crew was trained to operate the ack-ack gun effectively during air raids.
Synonyms
A large gun on the ground that shoots at planes
A small fast-firing gun on ships used to shoot at aircraft
How Powerful
- Archaic
- NSFW
Surface Forms
Morphology
The compound simply combines 'ack-ack' (artillery fire aimed at aircraft) with 'gun', yielding a gun used for ack-ack/anti-aircraft purposes. This follows a regular English pattern (X + gun = a gun for X) and is directly derivable from the constituents, so a B1 learner who knows both parts would understand the meaning.
Etymology
Ack-ack gun comes from soldiers saying ack-ack for the letters 'A A' in old military talk. That was short for 'anti-aircraft', so an ack-ack gun is a ground gun used to shoot at enemy planes.