/ Dictionary / Index W windfall: Meaning and Definition of Find definitions for: wind•fall Pronunciation: (wind'fôl"), [key] — n. an unexpected gain, piece of good fortune, or the like. something blown down by the wind, as fruit. —adj. accruing in unexpectedly large amounts: windfall profits. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: windfall (Thesaurus) wind erosion windfarm Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language