This is the 10089th most frequent Polish word.
białostoczanek
A female resident of Białystok, Poland.
The term 'białostoczanek' refers to female residents or natives of Białystok.
Białostoczanek uczestniczą w paradzie na ulicach miasta.
The women from Białystok participate in the parade on the city's streets.
In this context, 'białostoczanek' is used in the genitive plural form to denote belonging or relation to Białystok.
Spotkałem grupę młodych białostoczanek podczas wycieczki do Białegostoku.
I met a group of young women from Białystok during a trip to Białystok.
Here, 'białostoczanek' is used in the genitive plural form to indicate one among them.