sea wolf vs killer whale

sea wolf and killer whale both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea wolf	Yes	No	No	No
killer whale	Yes	No	No	No

As nouns, sea wolf and killer whale are synonyms defined as:

sea wolf and killer whale: predatory black-and-white toothed whale with large dorsal fin; common in cold seas

Other synonyms of sea wolf include grampus, killer, orca, Orcinus orca.

sea wolf (noun)	killer whale (noun)
predatory black-and-white toothed whale with large dorsal fin; common in cold seas	predatory black-and-white toothed whale with large dorsal fin; common in cold seas