/ Dictionary / Index W wine gallon: Meaning and Definition of Find definitions for: wine' gal'lon Pronunciation: [key] a former English gallon of 160 fluid ounces: equal to the present U.S. standard gallon of 128 fluid ounces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wine cooler wineglass Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language