American English

Definition of knuckle noun from the Oxford Advanced American Dictionary



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  1. 1[countable] any of the joints in the fingers, especially those connecting the fingers to the rest of the hand
  2. 2(also hock) [uncountable, countable] a piece of meat from the lower part of an animal's leg, especially a pig knuckle of pork
  3. Idioms
    (give somebody/get) a rap on/over/across the knuckles (informal)
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    (to give somebody/receive) gentle criticism for something We got a rap over the knuckles for being late.
    rap somebody on/over the knuckles, rap somebody's knuckles
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    to criticize someone gently for something The company was rapped over the knuckles for broadcasting the interview.
See the Oxford Advanced Learner's Dictionary entry: knuckle