grow up

phrasal verb
1
A1
to develop into an adult
بزرگ شدن, بالغ شدن
related noun grown-up [2]
2
used to tell somebody to stop behaving in a silly way
عاقل شو, رفتار کودکانه را کنار گذاشتن
Why don't you grow up?
It's time you grew up.
3
to develop gradually
رشد یافتن, بزرگ شدن, بالغ شدن, رشد کردن
A closeness grew up between the two girls.