1. A rapid increase or intensification

1. To become larger or more extensive

2. To increase in speed or rate

3. To increase in extent, volume, or scope

4. To become or make greater in size, amount, or degree

5. Forward or onward movement towards a destination

6. To go up or climb

7. To grow or develop in a healthy or vigorous way

8. To rise or increase dramatically

9. A significant increase or improvement

10. To grow, develop, or be successful

11. A small or brief period of significant growth

12. To move or extend upwards

13. The process of developing or increasing

14. A period of rapid economic growth

15. To increase or improve

16. To go up or increase

17. A sudden and significant increase