/ Dictionary / Index G guffaw: Meaning and Definition of Find definitions for: guf•faw Pronunciation: (gu-fô', gu-), [key] — n. a loud, unrestrained burst of laughter. —v.i. to laugh loudly and boisterously. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: guffaw (Thesaurus) guff GUGB Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language