/ Dictionary / Index C combined operations: Meaning and Definition of Find definitions for: combined' opera'tions Pronunciation: [key] war operations carried out cooperatively by two or more allied nations or by coordination of the land, sea, and air forces of one or more nations. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. combined combings Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language