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



    BrE BrE//ˈbaɪkə(r)//
    ; NAmE NAmE//ˈbaɪkər//
    Cycling, People in motoring
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  1. 1a person who rides a motorcycle, usually as a member of a large group a biker’s leather jacket See related entries: People in motoring
  2. 2a person who rides a bicycle, especially a mountain bike See related entries: Cycling
See the Oxford Advanced American Dictionary entry: biker