referee Definition

1. A person to whom reference is made to settle a question, dispute, etc.
2. An umpire or judge, eg of a game or in a dispute. Sometimes shortened to ref.

Thesaurus: judge, arbiter, arbitrator, umpire, mediator, adjudicator.
3. Someone who is willing to testify to a person's character, talents and abilities.
4. law.
Someone appointed by a court to report on some matter.

tr & intr
refereed, refereeing
1. To act as a referee in a game, dispute, etc.

Thesaurus: judge, arbitrate, adjudicate, mediate, umpire.