QUATREFOIL

Yes, QUATREFOIL is a Scrabble word!

Letter values in Scrabble US: Q 10, U 1, A 1, T 1, R 1, E 1, F 4, O 1, I 1, L 1.Q 10 · U 1 · A 1 · T 1 · R 1 · E 1 · F 4 · O 1 · I 1 · L 1

Is it a valid word?

• Scrabble US: valid, 22 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 22 points
• Scrabble UK: valid, 22 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 22 points
• Words with Friends: valid, 24 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 24 points