·vi To act as umpire or arbitrator.
II. Umpire ·vt To perform the duties of umpire in or for; as, to umpire a game.
III. Umpire ·vt To decide as umpire; to Arbitrate; to settle, as a dispute.
IV. Umpire ·noun A third person, who is to decide a controversy or question submitted to arbitrators in case of their disagreement.
V. Umpire ·noun 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.