Definition of caveman noun from the Oxford Advanced Learner's Dictionary

     

    caveman

     noun
    noun
    BrE BrE//ˈkeɪvmæn//
     
    ; NAmE NAmE//ˈkeɪvmæn//
     
    (pl. cavemen
    BrE BrE//ˈkeɪvmen//
     
    ; NAmE NAmE//ˈkeɪvmen//
     
    )
     
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  1. 1a person who lived in a cave thousands of years ago
  2. 2(informal) a man who behaves in an aggressive way
See the Oxford Advanced American Dictionary entry: caveman