Adjudicator vs Referee

When to use each in English, with meaning, register, and examples.

Adjudicator

FormalBeyond 10,000 (less common)

Referee

Top 3,000 (common)B2noun
Most formal: AdjudicatorMost common: Referee
 AdjudicatorReferee
Pronunciation🇬🇧 //əˈdʒuːdɪkeɪtə//🇺🇸 //əˈdʒuːdɪkeɪtər//🇬🇧 /["/ˌrefəˈriː/"]/🇺🇸 /["/ˌrefəˈriː/"]/
MeaningA person who makes a decision in a dispute or competition.A person who makes sure the rules are followed in a game or sport.
ExampleThe **adjudicator** ruled in favor of the plaintiff after reviewing the evidence.The referee blew the whistle to signal the end of the match.
RegisterFormalNeutral
How commonBeyond 10,000 (less common)Top 3,000 (common)
CEFR level-B2
Part of speechnoun
Collocationssenior adjudicator, chief adjudicator, independent adjudicator, adjudicator panel, qualified adjudicatorbasketball, boxing, football, award somebody something, blow his/​her/​the whistle, stop something, the referee’s decision, academic, act as, be, referee for
Antonymslitigant, defendantplayer, participant
Common mistakesConfused with 'arbitrator', which has a slightly different role., Using it as a verb instead of a noun., Pluralizing incorrectly; 'adjudicators' is the correct form.Confused with 'umpire', which is specific to some sports like baseball., Using 'referee' in a non-sporting context, where 'judge' might be more suitable., Mispronouncing it as 'refree', omitting the second syllable.
Usage notesUse 'adjudicator' in legal or competitive contexts. Avoid in casual conversations as it sounds too formal.Use 'referee' in contexts related to sports and games. It is appropriate in both casual and formal discussions about competitions. Avoid using it in non-sporting contexts.

See it in real clips

Adjudicator

Frequently asked questions: Adjudicator vs Referee

What's the difference between Adjudicator and Referee?

Adjudicator: A person who makes a decision in a dispute or competition. Referee: A person who makes sure the rules are followed in a game or sport.

Which is more formal: Adjudicator and Referee?

Adjudicator is the most formal of these.

Which is more common: Adjudicator and Referee?

Referee is the most common in everyday English.

Can you show an example of each?

Adjudicator: The **adjudicator** ruled in favor of the plaintiff after reviewing the evidence. Referee: The referee blew the whistle to signal the end of the match.

Can I use Adjudicator and Referee interchangeably?

Not always. Adjudicator and Referee are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons