/ Dictionary / Index G guesswork: Meaning and Definition of Find definitions for: guess•work Pronunciation: (ges'wûrk"), [key] — n. work or procedure based on or consisting of the making of guesses or conjectures. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: guesswork (Thesaurus) guesstimate guest 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