Yes, box is a Scrabble word!

Verb

1. Put into a box

2. Hit with the fist

3. Engage in a boxing match

Noun

1. A (usually rectangular) container; may have a lid

2. Private area in a theater or grandstand where a small group can watch the performance

3. The quantity contained in a box

4. A predicament from which a skillful or graceful escape is impossible

5. A rectangular drawing

6. Evergreen shrubs or small trees

7. Any one of several designated areas on a ball field where the batter or catcher or coaches are positioned

8. The driver's seat on a coach

9. Separate partitioned area in a public place for a few people

10. A blow with the hand (usually on the ear)