This is the 6022nd most frequent German word.
claude
The word "claude" does not exist as a standard German word. It may be a proper name or misspelling.
Here, 'Claude' is used as a proper noun referring to a person's name.
Claude arbeitet in der Stadtverwaltung.
Claude works in the city administration.
In this context, 'Claude' is once again used as a proper noun referring to a person's name directly addressed or mentioned.
Hast du Claude heute gesehen?
Have you seen Claude today?
Here, 'Claude' is a proper noun, and its use indicates the author of the book mentioned in the sentence.