A place in which business, clerical, or professional activities are conducted. The administrative personnel, executives, or staff working in such a place. A duty or function assigned to or assumed by someone. See Synonyms at function. A position of authority, duty, or trust given to a person, as in a government or corporation: the office of vice president. A subdivision of a governmental department: the U.S. Patent Office. A major executive division of a government: the British Home Office. A public position: seek office. Chiefly British The parts of a house, such as the laundry and kitchen, in which servants carry out household work. A usually beneficial act performed for another. Often used in the plural. Ecclesiastical A ceremony, rite, or service, usually prescribed by liturgy, especially: Ecclesiastical The canonical hours. Ecclesiastical A prayer service in the Anglican Church, such as Morning or Evening Prayer. Ecclesiastical A ceremony, rite, or service for a special purpose, especially the Office of the Dead.