Ejection (sports) in the context of Official (sports)

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 (by the International Olympic Committee). Referees may be assisted by linesmen, timekeepers, touch judges, or video assistant referees (VAR).

In baseball and softball, a relief pitcher or reliever is a pitcher who pitches in the game after the starting pitcher or another relief pitcher has been removed from the game due to fatigue, injury, ineffectiveness, ejection, high pitch count, or for other strategic reasons, such as inclement weather delays or pinch hitter substitutions. Relief pitchers are further divided informally into various roles, such as closers, setup men, middle relief pitchers, left/right-handed specialists, and long relievers. Whereas starting pitchers usually throw so many pitches in a single game that they must rest several days before pitching in another, relief pitchers are expected to be more flexible and typically pitch in more games with a shorter time period between pitching appearances but with fewer innings pitched per appearance. A team's staff of relievers is normally referred to metonymically as a team's bullpen, which refers to the area where the relievers sit during games, and where they warm-up prior to entering the game.

An umpire 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 term derives from the Old French nonper, non, 'not' and per, 'equal': 'one who is requested to act as arbiter of a dispute between two people' (as evidenced in cricket, where dismissal decisions can only be made on appeal). Noumper shows up around 1350 before undergoing a linguistic shift known as false splitting. It was written in 1426–1427 as a noounpier; the n was lost with the a indefinite article becoming an. The earliest version without the n shows up as owmpere, a variant spelling in Middle English, circa 1440. The leading n became permanently attached to the article, changing it to an Oumper around 1475.