A referee is an official who oversees a sports game to ensure that the rules are followed. They make important decisions, such as calling fouls or penalties, and help maintain fair play. Referees are essential in many sports, including soccer, basketball, and football, where their authority helps keep the game organized and safe for players. In addition to enforcing rules, referees also communicate with players and coaches during the game. They use signals and whistles to indicate their decisions, making it clear to everyone involved. A good referee is knowledgeable about the game and remains calm under pressure, contributing to a positive experience for both players and fans.