/ Dictionary / Index A apostolate: Meaning and Definition of Find definitions for: a•pos•to•late Pronunciation: (u-pos'tl-it, -āt"), [key] — n. the dignity or office of an apostle. the dignity and office of the pope as head of the Apostolic See. the mission of bishops in their dioceses. an organization of the laity devoted to the mission of the Church. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Apostle spoon apostolic Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language