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English definition of “gun”

gun

noun [C]  /ɡʌn/ us  

gun noun [C] (WEAPON)

a weapon from which bullets or shells (= explosive containers) are fired through a metal tube

gun

verb [T]  /ɡʌn/ (-nn-) us  

gun verb [T] (OPERATE ENGINE)

to make an engine operate at high speed: Tom gunned the engine and sped off into the night.
(Definition of gun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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