Referee

A referee is an official, in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions such as ejection. The official tasked with this job may be known by a variety of other titles depending on the sport, including umpire, judge, arbiter, commissaire, or technical official. Referees may be assisted by linesmen, timekeepers, touch judges, or video assistant referees (VAR).