/ Thesaurus / P Synonyms of panthera onca Find synonyms for: Noun1. jaguar, panther, Panthera onca, Felis onca, big cat, catusage: a large spotted feline of tropical America similar to the leopard; in some classifications considered a member of the genus FelisWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language