Breadcrumb Home > Thesaurus > O Synonyms of orca Find synonyms for: Noun 1. killer whale, killer, orca, grampus, sea wolf, Orcinus orca, dolphin usage: predatory black-and-white toothed whale with large dorsal fin; common in cold seas WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of orca (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: plutocracy Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language