MUTTONFISH

Yes, MUTTONFISH is a Scrabble word!

Letter values in Scrabble US: M 3, U 1, T 1, T 1, O 1, N 1, F 4, I 1, S 1, H 4.M 3 · U 1 · T 1 · T 1 · O 1 · N 1 · F 4 · I 1 · S 1 · H 4

Is it a valid word?

• Scrabble US: valid, 18 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 18 points
• Scrabble UK: valid, 18 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 18 points
• Words with Friends: valid, 20 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 20 points