believe
US /bɪˈliːv/
UK /bɪˈliːv/

1.
creer
accept (something) as true; feel sure that something is true
:
•
I believe that he is telling the truth.
Yo creo que él está diciendo la verdad.
•
Do you really believe in ghosts?
¿De verdad crees en fantasmas?
2.
creer en
have faith in the truth or existence of something
:
•
She believes in the power of positive thinking.
Ella cree en el poder del pensamiento positivo.
•
Many people believe in a higher power.
Muchas personas creen en un poder superior.