/ Dictionary / Index S September Massacre: Meaning and Definition of Find definitions for: Septem'ber Mas'sacre Pronunciation: [key] (in the French Revolution) the massacre of royalists and other inmates of the prisons of Paris, September 2–6, 1792. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. September Septembrist Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language