/ Dictionary / Index C Comdt.: Meaning and Definition of Find definitions for: Comdt. Pronunciation: [key] commandant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Comdr. come Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language