HEIGHTISM

Yes, HEIGHTISM is a Scrabble word!

Letter values in Scrabble US: H 4, E 1, I 1, G 2, H 4, T 1, I 1, S 1, M 3.H 4 · E 1 · I 1 · G 2 · H 4 · T 1 · I 1 · S 1 · M 3

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: not a valid word. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeNot a valid word