This is the 5614th most frequent German word.
bielefelder
"Bielefelder" refers to something or someone from Bielefeld, a city in Germany.
Here, 'Bielefelder' functions as an adjective derived from Bielefeld, describing something from or associated with this city.
Ich habe einen Bielefelder Kuchen probiert.
I tried a Bielefelder cake.
Here, 'Bielefelder' is used as a noun meaning inhabitants of Bielefeld.
In Bielefeld gibt es viele Bielefelder, die die Stadt lieben.
In Bielefeld, there are many Bielefelder who love the city.
In this instance, 'Bielefelder' serves as an adjective describing the market associated with Bielefeld.