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
at the crack of dawn
when the first light of the day appears, very early in the morning
We left for our holiday at the crack of dawn.