Yes, sinew is a Scrabble word!
...and is worth 8 points in Scrabble, and 9 points in Words with Friends
sinew
Noun
1. A cord or band of inelastic tissue connecting a muscle with its bony attachment
2. Possessing muscular strength
What Scrabble words can I make with the letters in sinew?
5 Letter Words
4 Letter Words
Sponsored Links
3 Letter Words
2 Letter Words