n.
1.a sudden forceful flow
2.a sudden or abrupt strong increase
3.a large sea wave surge v.
1.rise and move, as in waves or billows
2.rise rapidly
3.rise or move foward
4.rise or heave upward under the influence of a natural force such as a wave
5.see one's performance improve
Idiom of the Day
catch on
to understand something, to learn about something
I was finally able to catch on and understand the math problem.