(of flowers) to blossom
(of eggs or animals) to hatch
to swell; to expand; to inflate
(Southern Vietnam, colloquial) to give birth (to a child)

nở mặt
verb

to feel proud, to be elated due to pride

nở nang
adj

full; well-endowed, well-developed; brawny; husky

nở rộ
verb

to flourish; to bloom