dive n (from board)
salto ,
(underwater, of submarine)
mergulho,
(aviat) picada pej, café, bar etc espelunca vi mergulhar, picar to dive into (bag, drawer etc)
enfiar a mão,
(shop, car etc)
enfiar-se em
nose-dive
n (deliberate)
vôo picado , (involuntary)
parafuso