/ Dictionary / Index W wineglassful: Meaning and Definition of Find definitions for: wine•glass•ful Pronunciation: (wīn'glas-fool", -gläs-), [key] — pl. -fuls. the capacity of a wineglass, typically containing four to six fluid ounces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wineglass winegrower Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language