Umpires

noun

1. The official who presides over a tennis game sat on a high chair.
2. One of the two white-coated officials who preside over a cricket match.
3. One of usually 4 officials who preside over a baseball game.

   "The umpire called the pitch a strike."

4. 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."

5. 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.