dive

1. A jump or plunge into water.

   the dive of a hawk after prey

2. A headfirst jump toward the ground or into another substance.
3. A downward swooping motion.
4. A swim under water.
5. A decline.
6. A seedy bar, nightclub, etc.
7. Aerial descent with the nose pointed down.
8. A deliberate fall after a challenge.

1. To swim under water.
2. To jump into water head-first.
3. To jump headfirst toward the ground or into another substance.

   to dive into home plate

4. To descend sharply or steeply.
5. (especially with in) To undertake with enthusiasm.

   She dove right in and started making improvements.

6. To deliberately fall down after a challenge, imitating being fouled, in the hope of getting one's opponent penalised.
7. To cause to descend, dunk; to plunge something into water.
8. To explore by diving; to plunge into.
9. To plunge or to go deeply into any subject, question, business, etc.; to penetrate; to explore.

1. Any female celebrity, usually a well known singer or actress.
2. A person who may be considered or who considers herself (or by extension himself) much more important than others, has high expectations of others and who is extremely demanding and fussy when it comes to personal privileges.

noun

A supernatural entity of disagreeable nature.