/ Thesaurus / O Synonyms of outlet box Find synonyms for: Noun1. outlet box, receptacleusage: (electricity) receptacle consisting of the metal box designed for connections to a wiring systemWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language