ISOCHRONISM

Yes, ISOCHRONISM is a Scrabble word!

Letter values in Scrabble US: I 1, S 1, O 1, C 3, H 4, R 1, O 1, N 1, I 1, S 1, M 3.I 1 · S 1 · O 1 · C 3 · H 4 · R 1 · O 1 · N 1 · I 1 · S 1 · M 3

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: valid, 20 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 20 points