/ Dictionary / Index T tinder: Meaning and Definition of Find definitions for: tin•der Pronunciation: (tin'dur), [key] — n. a highly flammable material or preparation formerly used for catching the spark from a flint and steel struck together for fire or light. any dry substance that readily takes fire from a spark. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tinder (Thesaurus) Tindal tinderbox Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language