This is the 1813th most frequent German word.
oberhausen
Oberhausen: A city in western Germany located in the state of North Rhine-Westphalia.
Here, 'Oberhausen' functions as a proper noun referring to a city in Germany.
Ich fahre morgen nach Oberhausen.
I am traveling to Oberhausen tomorrow.
In this case, 'Oberhausen' still acts as a proper noun, denoting the location of the theater.
Das Theater in Oberhausen ist bekannt für ihre Aufführungen.
The theater in Oberhausen is known for its performances.
Here, 'Oberhausen' is used as a proper noun with a descriptor (die Stadt) specifying its type as a city.