KNAPSACK

Yes, KNAPSACK is a Scrabble word!

Letter values in Scrabble US: K 5, N 1, A 1, P 3, S 1, A 1, C 3, K 5.K 5 · N 1 · A 1 · P 3 · S 1 · A 1 · C 3 · K 5

Is it a valid word?

• Scrabble US: valid, 20 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 20 points
• Scrabble UK: valid, 20 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 20 points
• Words with Friends: valid, 23 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 23 points