Across
- 4. - attack
- 5. - somewhat
- 7. - seven
- 9. - wood
- 12. - circle
- 15. - island
- 16. - seller
- 19. - vapor
- 20. - bone
- 21. - against
- 22. - idea
- 23. - world or universe
Down
- 1. - front
- 2. - vessel
- 3. - billionth
- 4. - little
- 6. - like
- 8. - trillionth
- 9. - stranger
- 10. - without
- 11. - pressure
- 13. - skull
- 14. - heart
- 17. - know
- 18. - iron