This is the 7679th most frequent Portuguese word.
penafiel
"Penafiel" is the name of a town and municipality in Portugal; it does not have a specific definition beyond being a proper noun.
Here, 'Penafiel' is used as a proper noun to refer to the name of a city.
Penafiel é uma cidade encantadora no norte de Portugal.
Penafiel is a charming city in the north of Portugal.
In this sentence, 'Penafiel' is used to indicate the locality where the production of wine took place.
Eu comprei um vinho produzido em Penafiel.
I bought a wine produced in Penafiel.
'Penafiel' here refers to the residents of the city, specifying the origin of a particular accent.