Dictionary.com
Thesaurus.com
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

How does arbiter compare to similar and commonly confused words? Explore the most common comparisons:

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.

Keep Reading on Vocabulary.com

Vocabulary lists containing arbiter

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

So the key distinction is that there’s a neutral arbiter.

From Salon • Jan. 23, 2026

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

From The Wall Street Journal • Oct. 13, 2025

Whether you still see – or ever saw – Vogue as an arbiter of good taste, or reflection of our times, depends on who you talk to.

From BBC • Sep. 6, 2025

News & World Report, a leading arbiter of academic prestige.

From "Class Matters" by The New York Times