This is the 4283rd most frequent Polish word.
dzielnic
The word "dzielnic" is the genitive plural form of "dzielnica," which means "district" or "neighborhood" in English.
Here, 'dzielnice' is used as the plural noun form meaning 'districts' referring to different areas of the city.
Dzielnice Warszawy są pełne historii.
The districts of Warsaw are full of history.
In this context, 'dzielnic' is used metaphorically to mean 'sections' when dividing something.
Podzielił cały tort na kilka dzielnic.
He divided the whole cake into several sections.
Here, 'dzielnicy' refers to a specific 'district' (locative case), showing its adaptability in different sentence structures.