I have no idea where she got it from (a disney or nick show i'm sure) but we were sitting in the car and she said, "Mom, did you know that I'm almost a tween? It's something that is just before being a teenager. When I reach double digits, I will be between kid and teenager. That's why they call it TWEEN." hahaha
She has no idea that at 9 years old and because of her maturity, I already think of her as a tween.