This is the 9392nd most frequent Turkish word.
zeydan
The word "zeydan" does not appear to have a meaning in Turkish; it may be a proper noun or a misspelling.
Here, 'Zeydan' is used as a proper noun, likely referring to a person's name.
Zeydan bahçede güzel bir kitap okuyor.
Zeydan is reading a beautiful book in the garden.
Again, 'Zeydan' is functioning as a personal name noun, referring to the subject in the sentence.
Zeydan, bugün çok fazla ders çalıştı.
Zeydan studied a lot of lessons today.
In this sentence, 'Zeydan' is used as a possessive noun reflecting ownership, indicating whose house it is.