/ Thesaurus / P Synonyms of pay up Find synonyms for: Verb1. pay up, ante up, pay, payusage: cancel or discharge a debt; "pay up, please!"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language