noun
(government) A government official having different duties depending on the country; also, a magistrate, especially one of the Chief Magistrates of Geneva, Switzerland.
(chiefly British) An agent of a corporation, or of any body of people engaged in a business enterprise; specifically, in the University of Cambridge, a member of the senate appointed to carry out specific duties.
(Catholicism) A layperson who is given official responsibility for the finances, care, and civil administration of the nonreligious details of a convent or religious community.