LETTERBOX

Yes, LETTERBOX is a Scrabble word!

Letter values in Scrabble US: L 1, E 1, T 1, T 1, E 1, R 1, B 3, O 1, X 8.L 1 · E 1 · T 1 · T 1 · E 1 · R 1 · B 3 · O 1 · X 8

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