n. an advocate who presents a person (as for an award or a degree or an introduction etc.)

n. someone appointed by a court to assume responsibility for the interests of a minor or incompetent person

n. someone who travels behind or pursues another

n. a wise and trusted guide and advisor

n. a regular customer

n. someone who keeps safe from harm or danger

n. a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library"