An umpire.
When people say something to the umpire at a Baseball game they call him or her "Blue"
The judge of a baseball game is called an umpire.
You call a baseball referee an Umpire
the home plate umpire is the umpire in chief
Umpire.
The umpire. What he says, goes.
Umpire? They enforce the rules of the game.
The Umpires get together and the Umpire can call interference on himself and the playing running or batting has to redo it
They are called Umpires. One is the plate umpire, one is the field umpire.
The term 'magic word' stands for something you say to an umpire that gets you thrown out of a game. The word is a 3 letter, 1 syllable word ... YOU. Umpires now do not make the call of "you're out" but the call of "he's/she's out" in an attempt to make the game less personal and more generic. When disputing an umpire's call, other than asking "What did you see?" in asking the umpire what went into making the call, using the word YOU personalizes the dispute and is sure to cause it to escalate because now the dispute is with the umpire and not the call.
Jim Joyce is the worst MLB umpire of all time. Just look up Joyce and Armando Garagla This is not true Jim Joyce made one bad call ... it was a big one but non the less one bad call ... Jim Joyce blow the call on a perfect game ... but he was just voted the best umpire in baseball by the players ...