/ Dictionary / Index D demos: Meaning and Definition of Find definitions for: de•mos Pronunciation: (dē'mos), [key] — n. the common people of an ancient Greek state. the common people; populace. a people viewed as a political unit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: demos (Thesaurus) De Morgan's laws Demosthenes Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language