Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “arbiter”


noun [C]     /ˈɑːbɪtər/
someone whose opinion has a lot of influence : arbiter of fashion/style/taste He rose from polite but humble beginnings to become an arbiter of taste and manners .
LAW a person or organization that has the power to make a decision about what is acceptable or legal : the final/sole/ultimate arbiter It is the country's parliament which remains the final arbiter of which laws are passed and in what form .
(Definition of arbiter noun from the Cambridge Business English Dictionary © Cambridge University Press)
Focus on the pronunciation of arbiter

Definitions of “arbiter” in other dictionaries

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More