wierzyć

1. to believe (to accept as true, particularly without absolute certainty) [+ w (accusative) = (in) whom/what]
2. to believe (to accept that someone is telling the truth) [+dative = whom/what], [+ w (accusative) = (in) whom/what]
3. to believe in (to have confidence in the ability or power of) [+ w (accusative) = in whom]
4. to believe in (to believe that something is right or desirable) [+ w (accusative) = in what]
5. to believe (to have religious faith; to believe in a greater truth) [+ w (accusative) = in whom/what]
6. (obsolete) to confide in; to confess