grow up

US /ɡroʊ ˈʌp/
UK /ɡroʊ ˈʌp/
"grow up" picture
1.

grandir, devenir adulte

to become an adult

:
My children are growing up so fast.
Mes enfants grandissent si vite.
What do you want to be when you grow up?
Que veux-tu être quand tu seras grand ?
2.

grandir, mûrir

to stop behaving in a childish way

:
It's time to grow up and take responsibility.
Il est temps de grandir et de prendre ses responsabilités.
He needs to grow up and stop complaining about everything.
Il doit grandir et arrêter de se plaindre de tout.