ZILLIONTH

Yes, ZILLIONTH is a Scrabble word!

Letter values in Scrabble US: Z 10, I 1, L 1, L 1, I 1, O 1, N 1, T 1, H 4.Z 10 · I 1 · L 1 · L 1 · I 1 · O 1 · N 1 · T 1 · H 4

Is it a valid word?

• Scrabble US: valid, 21 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 21 points
• Scrabble UK: valid, 21 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 21 points
• Words with Friends: valid, 23 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 23 points