Yes, bounce is a Scrabble word!

Verb

1. Spring back; spring away from an impact

2. Hit something so that it bounces

3. Move up and down repeatedly

4. Come back after being refused

5. Leap suddenly

6. Refuse to accept and send back

7. Eject from the premises

Noun

1. The quality of a substance that is able to rebound

2. A light, self-propelled movement upwards or forwards

3. Rebounding from an impact (or series of impacts)