American English

Definition of buff noun from the Oxford Advanced American Dictionary

     

    buff

     noun
    noun
    NAmE//bʌf//
     
     
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  1. 1[countable] (used in compounds) a person who is very interested in a particular subject or activity and knows a lot about it an opera buff
  2. 2 [uncountable] a pale yellow-brown color synonym beige
  3. 3 [uncountable] soft, strong, yellowish-brown leather
  4. Idioms
    in the buff (informal)
     
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    wearing no clothes
    synonym naked
See the Oxford Advanced Learner's Dictionary entry: buff