Yes, few is a Scrabble word!
...and is worth 9 points in Scrabble, and 9 points in Words with Friends
few
Adjective
1. A quantifier that can be used with count nouns and is often preceded by `a'; a small but indefinite number
Noun
1. A small elite group
What Scrabble words can I make with the letters in few?
2 Letter Words