dive >> /daɪv/
Definition: [intransitive verb] Plunge head first into water.
Example: she walked to the deep end, then she dived in
Definition: [intransitive verb] (of an aircraft or bird) plunge steeply downward through the air.
Example: the aircraft dove for the ground to avoid the attack
Definition: [noun] A plunge head first into water.
Example: he hit the sea in a shallow dive
Definition: [noun] A steep descent by an aircraft or bird.
Example: the jumbo jet went into a dive
Definition: [noun] A shabby or sleazy bar or similar establishment.