TIGHTEN

Yes, TIGHTEN is a Scrabble word!

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

Is it a valid word?

• Scrabble US: valid, 11 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 11 points
• Scrabble UK: valid, 11 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 11 points
• Words with Friends: valid, 12 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 12 points