American English

Definition of phenomenon noun from the Oxford Advanced American Dictionary

      

    phenomenon

     noun
    noun
    NAmE//fəˈnɑməˌnɑn//
     
    , NAmE//fəˈnɑmənən//
     
    (pl. phenomena
    NAmE//fəˈnɑmənə//
     
    )
     
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  1. 1 a fact or an event in nature or society, especially one that is not fully understood cultural/natural/social phenomena Globalization is a phenomenon of the 21st century. Early retirement is a relatively new phenomenon in the U.S.
  2. 2(phenomenons) a person or thing that is very successful or impressive
See the Oxford Advanced Learner's Dictionary entry: phenomenon