This is the 8404th most frequent German word.
karlsfeld
"Karlsfeld" is a proper noun, referring to a town in Bavaria, Germany.
In this sentence, 'Karlsfeld' is used as a proper noun, specifically the name of a municipality in Germany.
Karlsfeld ist eine Gemeinde nahe München.
Karlsfeld is a municipality near Munich.
Here, 'Karlsfeld' indicates the destination of the travel, used with the preposition 'nach' for proper geographic locations.
Wir fahren nach Karlsfeld für einen Besuch bei Freunden.
We are traveling to Karlsfeld to visit friends.
In this case, 'Karlsfeld' serves to locate where the events take place, referring to the municipality as the context.