/ Dictionary / Index S screw nut: Meaning and Definition of Find definitions for: screw' nut" Pronunciation: [key] a nut threaded to receive a screw. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. screw nail screw-off Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language