This is the 3146th most frequent Polish word.
przystankach
"Przystankach" means "stops" (locative plural form, typically referring to bus/tram stops).
"Przystankach" describes places where advertisements were observed, emphasizing the object's state in reference to the location.
Rozmawialiśmy o reklamach widzianych na przystankach.
We talked about advertisements seen at the stops.
Here, "przystankach" is used to specify the context of existing stops, emphasizing location in proximity to a house, still in the locative case.
W moim mieście są trzy nowe przystanki, ale żadnych na przystankach w pobliżu mojego domu.
In my city, there are three new stops, but none at the stops near my house.
The word "przystankach" refers to multiple stops, indicating plurality and location (locative case in Polish).