Referees are officials in sports who ensure that the game is played fairly and according to the rules. They make decisions on fouls, penalties, and other infractions, helping to maintain order during the match. Referees are trained to understand the specific rules of the sport they officiate, whether it be soccer, basketball, or football. In addition to enforcing rules, referees also communicate with players and coaches to explain decisions and maintain a respectful atmosphere. They often wear distinctive uniforms and may use signals to indicate calls. Their role is crucial for the integrity of the game and the safety of the participants.