/ Thesaurus / C Synonyms of cap off Find synonyms for: Verb1. cap off, get through, wrap up, finish off, mop up, polish off, clear up, finish upusage: finish or complete, as with some decisive action; "he capped off the meeting with a radical proposal"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language