the sport or activity of swimming or exploring under water

the sport or activity of diving into water from a diving board

moving quickly or suddenly through the air, especially in a downward direction

I tried in vain to get a shot of a diving falcon

he scored with a diving header

plunge head first into water with one's arms raised over one's head

she walked to the deep end, then she dived in

he dived off the bridge for a bet

(of an aircraft or bird) plunge steeply downwards through the air

the plane dived as it was buffeted by turbulence at 34,000 ft

arctic skuas which dive at your head as you walk near their territories