This is the 6358th most frequent German word.
duisburg
"Duisburg" is a city in Germany.
Here, 'Duisburg' refers to the name of a city in Germany, utilized as a proper noun.
Ich habe einen Freund, der in Duisburg wohnt.
I have a friend who lives in Duisburg.
Here, 'Duisburg' is used in an attributive adjective form 'Duisburger' to describe items belonging to or located in Duisburg.
Im Duisburger Stadtpark gibt es viele schöne Plätze zum Spazierengehen.
In the Duisburg city park, there are many beautiful places to walk.
In this instance, 'Duisburg' still acts as the name of the city but is contextualized within a discussion about its characteristics and relevance.