Yes, submit is a Scrabble word!

Verb

1. Refer for judgment or consideration

2. Put before

3. Yield to the control of another

4. Hand over formally

5. Refer to another person for decision or judgment

6. Yield to another's wish or opinion

7. Accept or undergo, often unwillingly

8. Make an application as for a job or funding

9. Make over as a return

10. Accept as inevitable