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Synonyms

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

  • superarbiter noun

Etymology

Origin of arbiter

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

Compare meaning

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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.

After retiring in 2013, he joined a private Washington law practice where he handled official arbiter missions.

From Barron's • Mar. 21, 2026

Over the last decade and a half, the critic’s role has evolved from that of an arbiter to a kind of prescriber.

From Salon • Feb. 7, 2026

“She was welcomed into the prosecution fold as an adviser, strategist, authoritative arbiter on the policy and practices of the Church of Scientology, and advocate for the complaining witnesses,” the motion read.

From Los Angeles Times • Nov. 17, 2025

“He’s now proven himself as an effective arbiter and peacemaker.”

From The Wall Street Journal • Oct. 13, 2025

In a way, however, he was the final arbiter.

From "Endgame" by Frank Brady