You call a baseball referee an Umpire
There is 2 different roles. an umpire and a referee. The difference is that a referee has the final say on all technical issues and is responsible for everything.
There isn't such thing as a baseball referee! Its a umpire! Go try to find it if you want to be an umpire soooooooooooooooo bad! Look on the internet!
The referee
At the beginning of a sentence and when it forms part of the proper noun or when it is used as a direct address. Example: Referee George Don't call foul, Referee!
He was a Switz referee called Massimo Buscaa.
A sumo referee is called a gyoji. Their name is either Shikimori or Kimura.
Umpire of course
An alternate name for judge is justice, magistrate, or referee.
I think you got baseball and basketball mixed up. Only baseball has umpires. In baskeball its a referee. Why there is a referee? Basketball needs a ref because he keeps the rules and watches out for fouls made from a player or team.
Massimo Busaca
albert