Yes, art is a Scrabble word!
...and is worth 3 points in Scrabble, and 3 points in Words with Friends
art
Noun
1. The products of human creativity; works of art collectively
2. The creation of beautiful or significant things
3. A superior skill that you can learn by study and practice and observation
4. Photographs or other visual representations in a printed publication
What Scrabble words can I make with the letters in art?
3 Letter Words
2 Letter Words