This is the 7010th most frequent Polish word.
górnośląskie
"Górnośląskie" means "Upper Silesian," referring to something related to Upper Silesia, a historical region in Poland.
The word 'górnośląskie' here functions as an adjective describing the region's landscapes, specifically referring to Upper Silesia, which is a geographical area in Poland.
Górnośląskie krajobrazy są przepiękne.
The Upper Silesian landscapes are beautiful.
'Górnośląskiej' in this context is a part of the proper name of a street (Upper Silesian Street), indicating a direct reference to Upper Silesia in the naming of the street.
Mieszkałem kiedyś na Górnośląskiej ulicy w Warszawie.
I once lived on Upper Silesian Street in Warsaw.
'górnośląskie' is used as an adjective to reference the individual's ancestral or familial ties to Upper Silesia.