This is the 296th most frequent Polish word.
europy
"Europy" is the genitive singular form of "Europa," meaning "of Europe" in English.
In this context, 'Europy' is the genitive case of 'Europa', used because it describes possession or relation—here, the geography belonging to Europe.
Geografia Europy jest niezwykle interesująca.
The geography of Europe is incredibly interesting.
'Europy' in this sentence is used in the genitive case again, showing the relationship of possession or relevance, linking 'historia' to 'Europa'.
Historia Europy uczy nas o wielu ważnych wydarzeniach.
The history of Europe teaches us about many important events.
Here, 'Europy' is in the genitive case due to its relation with the preposition 'z,' which typically assigns the genitive case to its objects.