HACKMATACK

Yes, HACKMATACK is a Scrabble word!

Letter values in Scrabble US: H 4, A 1, C 3, K 5, M 3, A 1, T 1, A 1, C 3, K 5.H 4 · A 1 · C 3 · K 5 · M 3 · A 1 · T 1 · A 1 · C 3 · K 5

Is it a valid word?

• Scrabble US: valid, 27 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 27 points
• Scrabble UK: valid, 27 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 27 points
• Words with Friends: valid, 29 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 29 points