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English definition of “bang”

bang

verb [I/T]  /bæŋ/ us  
to make or cause something to make a sudden loud, usually short noise, esp. by hitting two things together: [T] He banged his head on the open cupboard door. To bang out something is to do something quickly: [M] I sat down at the piano and banged out a tune.

bang

noun [C]  /bæŋ/ us  
a sudden loud, usually short noise: She ran out of the room and slammed the door with a bang.
(Definition of bang from the Cambridge Academic Content Dictionary © Cambridge University Press)
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