/ Dictionary / Index C comm.: Meaning and Definition of Find definitions for: comm. Pronunciation: [key] commander. commerce. commission. committee. commonwealth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coml. comma Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language