American English

Definition of crank noun from the Oxford Advanced American Dictionary



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  1. 1a bar and handle in the shape of an L that you pull or turn to produce movement in a machine, etc.
  2. 2a person who easily gets angry or annoyed The old crank next door can't stand the sound of our lawnmower.
  3. 3(disapproving) a person with ideas that other people find strange synonym eccentric Vegetarians are no longer dismissed as cranks. Everybody famous gets crank calls and letters.
See the Oxford Advanced Learner's Dictionary entry: crank