This is the 12932nd most frequent German word.
ziersdorf
"Ziersdorf" is not a standard German word; it is the name of a town in Austria.
Here, 'Ziersdorf' serves as a proper noun, a geographical name of a place.
Ziersdorf ist eine kleine Gemeinde in Österreich.
Ziersdorf is a small community in Austria.
In this instance, 'Ziersdorf' again refers to the place as the subject of the reading.
Ich habe neulich über Ziersdorf gelesen.
I recently read about Ziersdorf.
Here, 'Ziersdorf' is used to denote the location where an action takes place.