/ Thesaurus / K Synonyms of key out Find synonyms for: Verb1. identify, discover, key, key out, distinguish, describe, nameusage: identify as in botany or biology, for exampleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language