This is the 4456th most frequent Polish word.
kawiarniach
"Kawiarniach" means "cafés" (locative plural form) in English.
The word 'kawiarniach' is used here in locative case, indicating the location where the action takes place, namely 'cafes'.
W kawiarniach można spędzać miły czas z przyjaciółmi.
One can spend pleasant time with friends in cafes.
Here, 'kawiarniach' is in locative case and modifies 'in a large city,' specifying where the cafes are and their attribute.
Kawiarniach w dużym mieście często oferują różnorodne menu.
Cafes in a large city often offer a diverse menu.
The word 'kawiarniach' appears in locative case describing the places where they searched for something.