REFEREE, to supervise the play in certain sports [v]
A person appointed to examine and assess for publication a scientific or other academic work
A person willing to testify in writing about the character or ability of someone, esp. an applicant for a job
An official who watches a game or match closely to ensure that the rules are adhered to and (in some sports) to arbitrate on matters arising from the play
A person whose opinion or judgment is sought in some connection, or who is referred to for a decision in a dispute