American English

Definition of commentator noun from the Oxford Advanced American Dictionary



    commentator (on something)
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  1. 1a person who is an expert on a particular subject and talks or writes about it on television or radio, or in a newspaper a political commentator
  2. 2a person who describes an event while it is happening, especially on television or radio a television/sports commentator
See the Oxford Advanced Learner's Dictionary entry: commentator