/ Dictionary / Index S self-ignite: Meaning and Definition of Find definitions for: self-ig•nite Pronunciation: (self'ig-nīt', self"-), [key] — -nit•ed, -nit•ing. to ignite without spark or flame. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. self-identity self-image Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language