This is the 855th most frequent Turkish word.
orhan
"Orhan" is a Turkish male given name, meaning "great leader" or "ruler."
Here, 'Orhan' is used as a proper noun, referring to a person's name.
Orhan kitap okuyor.
Orhan is reading a book.
Here, 'Orhan' is used as part of a full name, referring to a specific writer.
Bu roman, Orhan Pamuk'un bir eseridir.
This novel is a work by Orhan Pamuk.
In this sentence, 'Orhan' is again a proper noun used to refer to a specific person, focusing on a hypothetical situation involving them.