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.”