umpire

A person appointed to rule on plays, especially in baseball.

A person appointed to settle a dispute that mediators have been unable to resolve; an arbitrator.

To act as referee for; rule or judge.

To be or act as a referee or an arbitrator.

To decide as umpire; settle, as a dispute. Specifically To enforce the rules of (a game), and decide disputed points: as, to umpire a game of baseball.

To act as umpire.

A person to whose sole decision a controversy or question between parties is referred; one agreed upon as a judge, arbiter, or referee in case of conflict of opinions; specifically, a person selected to see that the rules of a game, as cricket or base-ball, are enforced, and to decide disputed or debatable points.

In law, a third person called in to decide a controversy or question submitted to arbitrators when the arbitrators do not agree in opinion.

To act as umpire or arbitrator.

A person to whose sole decision a controversy or question between parties is referred; especially, one chosen to see that the rules of a game, as cricket, baseball, or the like, are strictly observed.