arbitrer signifie anglais

referee [refereed, refereeing, referees]▼◼◼◼(to act as a judge of a game or contest)
verb
[UK: ˌre.fə.ˈriː] [US: ˌre.fə.ˈriː]The referee is not good. = L'arbitre n'est pas bon.

umpire [umpired, umpiring, umpires]▼◼◼◼(to act as an umpire in a game)
verb
[UK: ˈʌm.paɪə(r)] [US: ˈʌm.ˌpaɪər]I was asked to umpire the game. = On m'a demandé d'arbitrer la partie.