This is the 9502nd most frequent Polish word.
wierzę
"I believe."
Here, 'wierzę' is used in the context of self-confidence and personal belief.
Wierzę w siebie.
I believe in myself.
In this sentence, 'wierzę' indicates the holding of a personal belief about a universal concept.
Wierzę, że nauka jest ważna.
I believe that education is important.
Here, 'wierzę' reflects religious faith or belief in a higher power.