Across
- 1. To concentrate
- 4. An essential
- 5. To turn
- 6. Burning up
- 8. To sob
- 12. To practice
- 14. To refrain
- 15. Wooden shelter
- 16. A material
Down
- 2. A component
- 3. To disappear
- 4. To choose
- 5. An enemy
- 7. To notice
- 9. In between
- 10. A main focus
- 11. Very hard
- 13. To work