arbiter (n.)

  1. someone with the power to settle matters at will; she was the final arbiter on all matters of fashion

    [ Syn: supreme authority ]

  2. someone chosen to judge and decide a disputed issue; the critic was considered to be an arbiter of modern literature; the arbitrators authority derived from the consent of the disputants; an umpire was appointed to settle the tax case

    [ Syn: arbitrator , umpire ]

The dictionary is based on the WordNet Electronic Lexical Database.
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