1
The act of jumping into water.

2
A jump downwards, head first, possibly with arms erected before the head, usually ending up in water.

3
a steep nose-down descent by an aircraft

4
The attempt by a football player to gain an unfair advantage by falling to the ground and possibly feigning an injury.

5
a cheap disreputable nightclub or dance hall

6
a headlong plunge into water

7
drop steeply