Yes, deed is a Scrabble word!
...and is worth 6 points in Scrabble, and 6 points in Words with Friends
deed
Noun
1. A legal document signed and sealed and delivered to effect a transfer of property and to show the legal right to possess it
2. Something that people do or cause to happen
What Scrabble words can I make with the letters in deed?
3 Letter Words
2 Letter Words