/ Dictionary / Index C concomitancy: Meaning and Definition of Find definitions for: con•com•i•tan•cy Pronunciation: (kon-kom'i-tun-sē, kun-), [key] — pl. -cies. concomitance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. concomitance concomitant Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language