/ Thesaurus / B Synonyms of by play Find synonyms for: Noun1. business, stage business, byplay, acting, playing, playacting, performingusage: incidental activity performed by an actor for dramatic effect; "his business with the cane was hilarious"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language