/ Dictionary / Index T titter: Meaning and Definition of Find definitions for: tit•ter Pronunciation: (tit'ur), [key] — v.i. to laugh in a restrained, self-conscious, or affected way, as from nervousness or in ill-suppressed amusement. —n. a tittering laugh. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: titter (Thesaurus) tit-tat-toe tittie Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language