This is the 1804th most frequent Polish word.
zdać
"Zdać" means "to pass" (e.g., an exam) or "to give/return" something.
Here, 'zdać' means 'to pass' in the context of an examination or test.
Udało mi się zdać egzamin.
I managed to pass the exam.
In this instance, 'zdać' means 'to hand in' or 'to give something over for processing'.
Muszę zdać ubrania do pralni.
I need to hand in the clothes to the laundry service.
Here, 'zdać' means 'to submit' or 'to deliver' a report or document.