Referee is a person who has the authority to enforce the rules of a game or competition. Here are some examples:
* Sports: A referee in a football game ensures fair play and makes sure everyone follows the rules.
* Boxing: A referee oversees a boxing match, stopping the fight if a fighter is in danger.
* Academic Journal: A referee is a subject expert who reviews a research paper before it's published in an academic journal.
Let me know if you had something else in mind.