grow up
US /ɡroʊ ˈʌp/
UK /ɡroʊ ˈʌp/

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.