/ Dictionary / Index O officer: Meaning and Definition of Find definitions for: of•fi•cer Pronunciation: (ô'fu-sur, of'u-), [key] — n. a person who holds a position of rank or authority in the army, navy, air force, or any similar organization, esp. one who holds a commission. a member of a police department or a constable. a person licensed to take full or partial responsibility for the operation of a merchant ship or other large civilian ship; a master or mate. a person appointed or elected to some position of responsibility or authority in the government, a corporation, a society, etc. (in some honorary orders) a member of any rank except the lowest. an agent. —v.t. to furnish with officers. to command or direct as an officer does. to direct, conduct, or manage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: officer (Thesaurus) office park officer of arms Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language