This is the 6394th most frequent German word.
düsseldorf
Düsseldorf is the name of a city in western Germany, located along the Rhine River.
Here, 'Düsseldorf' is used as a proper noun identifying the speaker's place of origin.
Ich komme ursprünglich aus Düsseldorf.
I originally come from Düsseldorf.
In this sentence, 'Düsseldorf' is a proper noun referring to a specific city, used within a description of its notable features.
Die Stadt Düsseldorf ist bekannt für ihre moderne Architektur.
The city of Düsseldorf is known for its modern architecture.
Here, 'Düsseldorf' is used as a locational proper noun to specify the place where the language course occurred.