Crossword Genius

Another name for the killer whale or blackfish (4)

Ross

I believe the answer is:

orca

(Other definitions for orca that I've seen before include "Massive killer" , "Marine creature" , "Predatory black and white toothed whale" , "Killer at sea" , "Sea creature" .)

I've seen this clue in The Independent.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.