Yes, ball is a Scrabble word!

Verb

1. Form into a ball by winding or rolling

Noun

1. Round object that is hit or thrown or kicked in games

2. A solid projectile that is shot by a musket

3. An object with a spherical shape

4. The people assembled at a lavish formal dance

5. One of the two male reproductive glands that produce spermatozoa and secrete androgens

6. A spherical object used as a plaything

7. United States comedienne best known as the star of a popular television program (1911-1989)

8. A compact mass

9. A lavish dance requiring formal attire

10. A more or less rounded anatomical body or mass

11. The game of baseball

12. A pitch that is not in the strike zone