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

     

    wow

     noun
    noun
    BrE BrE//waʊ//
     
    ; NAmE NAmE//waʊ//
     
     
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  1. 1[singular] (informal) a great success Don't worry. You'll be a wow.
  2. 2[uncountable] (specialist) gradual changes in the pitch of sound played on a record or tape compare flutter
  3. Word Origin sense 1natural exclamation: first recorded in Scots in the early 16th cent. sense 2 1930s: imitative.
See the Oxford Advanced American Dictionary entry: wow