umpire

The official who presides over a tennis game sat on a high chair.

One of the two white-coated officials who preside over a cricket match.

One of usually 4 officials who preside over a baseball game.

“The umpire called the pitch a strike.”

The official who stands behind the line on the defensive side.

“The umpire must keep on his toes as the play often occurs around him.”

A match official on the ground deciding and enforcing the rules during play. As of 2007 the Australian Football League uses 3, or in the past 2 or just 1. The other officials, the goal umpires and boundary umpires, are normally not called just umpires alone.

A person who arbitrates between contending parties.

The official who presides over a curling game.

To act as an umpire in a game.

To decide as an umpire.