This is the 9686th most frequent Polish word.
zagrzebiu
"Zagrzebiu" is not a standard Polish word; it might be a misspelling or regional term. Could you provide more context?
The word 'Zagrzebiu' is the locative case of 'Zagrzeb', indicating location 'in Zagreb'.
Byłem w Zagrzebiu zeszłego lata.
I was in Zagreb last summer.
Similarly, 'Zagrzebiu' here denotes 'in Zagreb', emphasizing location.
Spotkałem się z przyjaciółmi w Zagrzebiu.
I met with friends in Zagreb.
Again, 'Zagrzebiu' is used as the locative case, specifying the location of the event.