Across
- 5. to become wider
- 7. the movement of water in the sea or a river; the movement of air in a particular direction
- 11. far away from places where other people live
- 12. extremely large in size or amount; great in degree
- 15. the quality of being physically strong
- 17. an occasion when a volcano suddenly throws out burning rocks, smoke, etc.
- 18. having a large distance from the top or surface to the bottom
Down
- 1. very large; much larger or more important than similar things usually are
- 2. wide
- 3. having large and dangerous waves; wild and with storms
- 4. to become more powerful or effective; to make somebody/something more powerful or effective
- 6. the distance from the top or surface to the bottom of something
- 8. the distance or measurement from one side to the other; how broad or wide something is
- 9. the quality of being tall or high
- 10. become stronger or increase
- 13. to become deeper; to make something deeper
- 14. the steady and continuous movement of something/somebody in one direction
- 16. dangerous because of big waves, etc.