The term 'MATCH ARBITER' is a job title for a referee, or official, who is responsible for overseeing a sporting match. The three-letter acronym for this job title is 'REF'. A Match Arbiter is responsible for ensuring that the rules of the game are followed and that the match is conducted in a fair and safe manner. They also have the authority to make decisions regarding the outcome of the match, such as awarding penalties or disqualifying players.