/ Dictionary / Index W wing nut: Meaning and Definition of Find definitions for: wing' nut" Pronunciation: [key] a nut having two flat, widely projecting pieces such that it can be readily tightened with the thumb and forefinger. Also calledSee illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wing loading wingover Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language