to believe, to believe (in a religious sense) / to have faith, to think / to suppose (to consider likely)
Se assim se crer, é Deus; senão, é uma pedra.
If you believe it to be so, it is God; otherwise, it is a stone.
É perigoso crer em milagres pessoais.
It’s dangerous to believe in personal miracles.
— O Escafandro e a Borboleta (2007)
Eles vão ter o deles, pode crer!
They'll get what's coming to them, you can bet on it!
— Delicatessen (1991)