Yes, nix is a Scrabble word!
...and is worth 10 points in Scrabble, and 11 points in Words with Friends
nix
Verb
1. Command against
Noun
1. A quantity of no importance
What Scrabble words can I make with the letters in nix?
2 Letter Words
Verb
1. Command against
Noun
1. A quantity of no importance
2 Letter Words