Area of Authority is a term used to describe the scope of a person's authority or responsibility. BAILIWICK, with nine letters, is an old-fashioned word for a person's area of authority or jurisdiction. REALM, with five letters, is another word for a person's domain or area of control. UMP, with three letters, is a slang term for an umpire or referee, who has the authority to make decisions in a game or sport. Finally, REMIT, with five letters, is a term used to describe the limits of a person's authority or responsibility.