believe in

US /bɪˈliːv ɪn/
UK /bɪˈliːv ɪn/
"believe in" picture
1.

wierzyć w

to have faith in the existence of something or someone

:
Do you believe in ghosts?
Czy wierzysz w duchy?
I believe in God.
Wierzę w Boga.
2.

wierzyć w, ufać

to have confidence in the ability or goodness of someone or something

:
I believe in you, you can do it!
Wierzę w ciebie, dasz radę!
She still believes in the power of kindness.
Nadal wierzy w siłę życzliwości.