/ Thesaurus / C Synonyms of cash register Find synonyms for: Noun1. cash register, register, cashbox, money box, tillusage: a cashbox with an adding machine to register transactions; used in shops to add up the billWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language