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English definition of “crank”

crank

noun [C]  /kræŋk/ us  

crank noun [C] (PERSON)

a person who has strange ideas and behaves in strange ways: He just seemed like a harmless crank to me.

crank noun [C] (HANDLE)

a handle or bar on a machine that you can turn to make another part turn
(Definition of crank from the Cambridge Academic Content Dictionary © Cambridge University Press)
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