Breadcrumb Home > Thesaurus > G Synonyms of grampus 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 2. grampus, Grampus griseus, dolphin usage: slaty-grey blunt-nosed dolphin common in northern seas WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of grampus (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: fatuous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language