Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun killer_whale
1 sense of killer whale
Sense 1
killer whale, killer, orca, grampus, sea wolf, Orcinus orca -- (predatory black-and-white toothed whale with large dorsal fin; common in cold seas)
=> dolphin -- (any of various small toothed whales with a beaklike snout; larger than porpoises)