arbiter

arbiter

noun

Definition of ARBITER

a person who impartially decides or resolves a dispute or controversy <the dean of student affairs is the proper arbiter when a student disputes a grade>

Synonyms adjudicator, arbiter, arbitrator, referee, umpire

Related Words jurist, justice, magistrate; intermediary, intermediate, mediator, mediatrix, moderator, negotiator; conciliator, go-between, peacemaker, reconciler, troubleshooter; decider