NIGHTMARE

Yes, NIGHTMARE is a Scrabble word!

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

Is it a valid word?

• Scrabble US: valid, 15 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 15 points
• Scrabble UK: valid, 15 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 15 points
• Words with Friends: valid, 17 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 17 points