Yes, nazi is a Scrabble word!
...and is worth 13 points in Scrabble, and 14 points in Words with Friends
nazi
Adjective
1. Relating to or consistent with or typical of the ideology and practice of Nazism or the Nazis
2. Relating to a form of socialism
Noun
1. A German member of Adolf Hitler's political party
2. Derogatory term for a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc.
What Scrabble words can I make with the letters in nazi?
3 Letter Words
2 Letter Words