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