MASTODONTS

Yes, MASTODONTS is a Scrabble word!

Letter values in Scrabble US: M 3, A 1, S 1, T 1, O 1, D 2, O 1, N 1, T 1, S 1.M 3 · A 1 · S 1 · T 1 · O 1 · D 2 · O 1 · N 1 · T 1 · S 1

Is it a valid word?

• Scrabble US: valid, 13 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 13 points
• Scrabble UK: valid, 13 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 13 points
• Words with Friends: valid, 15 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 15 points