/ Thesaurus / P Synonyms of peppermint oil Find synonyms for: Noun1. peppermint oil, flavorer, flavourer, flavoring, flavouring, seasoner, seasoningusage: oil from the peppermint plant used as flavoringWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language