/ Thesaurus / R Synonyms of rate of return Find synonyms for: Noun1. rate of return, rateusage: the amount returned per unit of time expressed as a percentage of the costWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language