Breadcrumb Home > Dictionary > Index D Dem: Meaning and Definition of Find definitions for: Dem Pronunciation: (dem), [key] — n. Informal. a member of the Democratic party. the Democratic party. Dem. Pronunciation: [key] Democrat. Democratic. dem. Pronunciation: [key] demonstrative. demurrage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dely. demagnetize ✖ Related Content Daily Word Quiz: prandial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language