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arbiter

American  
[ahr-bi-ter] / ˈɑr bɪ tər /

noun

  1. a person empowered to decide matters at issue; judge; umpire.

  2. a person who has the sole or absolute power of judging or determining.


arbiter British  
/ ˈɑːbɪtə /

noun

  1. a person empowered to judge in a dispute; referee; arbitrator

  2. a person having complete control of something

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of arbiter

1350–1400; Middle English arbitour, arbitre < Anglo-French, Old French < Latin arbiter

Compare meaning

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Explanation

An arbiter is someone selected to judge and settle a dispute. When Doc and Grumpy disagreed over whose turn it was to stay late at the mine, they chose Snow White as an arbiter. Arbiter, from the Latin, means "one who goes somewhere as witness or judge.” The arbiter of a baseball game is called an umpire. In football and basketball, the arbiter is a referee. Arbitration is a type of conflict resolution in which a neutral person — the arbiter — hears the details of a dispute and makes a legally-binding decision about its resolution.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The other notable character is the Arbiter, who functions primarily, and exhaustingly, as narrator, portrayed with brittle humor by Bryce Pinkham.

From The Wall Street Journal • Nov. 17, 2025

Arbiter added: “Buckingham Palace is not really the sort of place that anyone would want to live in, frankly. It’s enormous.”

From Washington Post • Apr. 29, 2023

“The only difficulty is with the global audience, who will believe the royal family are like that,” Arbiter added.

From New York Times • Dec. 2, 2022

“Don’t kill off the queen quite yet,” said Dickie Arbiter, 81, the queen’s press former secretary, who is now a prolific commentator on the royal family.

From Los Angeles Times • Jun. 2, 2022

This is the story of the Matron of Ephesus, told in a much more interesting manner by Petronius Arbiter.

From The Fables of Phædrus Literally translated into English prose with notes by Riley, Henry T. (Henry Thomas)