Yes, rosy is a Scrabble word!
...and is worth 7 points in Scrabble, and 6 points in Words with Friends
rosy
Adjective
1. Reflecting optimism
2. Having the pinkish flush of health
3. Of blush color
4. Presaging good fortune
What Scrabble words can I make with the letters in rosy?
3 Letter Words
2 Letter Words