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English definition of “crank”

crank

noun [C] (PERSON)    /kræŋk/ informal
a person who has strange or unusual ideas and beliefs Stupid and silly people US an unpleasant and easily annoyed person : She's always a crank first thing in the morning .Unpleasant people in generalUnpleasant men
(Definition of crank noun (PERSON) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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