This is the 1927th most frequent Polish word.
włoszech
"Włoszech" means "Italy" in the locative case in Polish.
The word 'Włoszech' is used here as the locative case to indicate the location where an action occurred.
Byłem na wakacjach we Włoszech.
I was on vacation in Italy.
Here 'Włoszech' is also in the locative case, used to describe the area through which the travel took place.
Podczas podróży po Włoszech odkryłem wiele miejsc.
During my journey through Italy, I discovered many places.
In this sentence, 'Włoszech' represents the location where someone lived, again using the locative case.