This is the 2592nd most frequent Polish word.
sądzę
"I think" or "I believe."
Here, 'sądzę' is used to express an opinion or belief about something.
Sądzę, że to dobry pomysł.
I think it's a good idea.
'Sądzisz' is asking someone else's opinion, serving as a conversational question starter.
Co sądzisz o tym filmie?
What do you think about this movie?
In this instance, 'sądź' means to judge, indicating an evaluative action.