AMMONIUM

Yes, AMMONIUM is a Scrabble word!

Letter values in Scrabble US: A 1, M 3, M 3, O 1, N 1, I 1, U 1, M 3.A 1 · M 3 · M 3 · O 1 · N 1 · I 1 · U 1 · M 3

Is it a valid word?

• Scrabble US: valid, 14 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 14 points
• Scrabble UK: valid, 14 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 14 points
• Words with Friends: valid, 19 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 19 points