/ Dictionary / Index C chief warrant officer: Meaning and Definition of Find definitions for: chief' war'rant of"ficer Pronunciation: [key] — U.S. Mil. U.S. Mil. a warrant officer ranking immediately below a second lieutenant or ensign in the armed forces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chieftain chield Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language