/ Dictionary / Index W wall plug: Meaning and Definition of Find definitions for: wall' plug" Pronunciation: [key] an electrical outlet permanently mounted on a wall. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wall plate wallposter Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language