/ Dictionary / Index D D-mark: Meaning and Definition of Find definitions for: D-mark Pronunciation: (dē'märk"). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. DMA D.M.D. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language