Yes, fixed is a Scrabble word!

Adjective

1. (of a number) having a fixed and unchanging value

2. Fixed and unmoving

3. Securely placed or fastened or set

4. Incapable of being changed or moved or undone; e.g. "frozen prices"

Verb

1. Restore by replacing a part or putting together what is torn or broken

2. Cause to be firmly attached

3. Decide upon or fix definitely

4. Prepare for eating by applying heat

5. Take vengeance on or get even

6. Set or place definitely

7. Kill, preserve, and harden (tissue) in order to prepare for microscopic study

8. Make fixed, stable or stationary

9. Make infertile

10. Influence an event or its outcome by illegal means

11. Put (something somewhere) firmly

12. Make ready or suitable or equip in advance for a particular purpose or for some use, event, etc