This is the 4778th most frequent Turkish word.
dosyanın
"Dosyanın" means "of the file" or "the file's" in English, indicating possession.
Here, 'dosyanın' is used in the genitive case, indicating possession or relationship—'of the file'.
Dosyanın içeriği oldukça büyüleyiciydi.
The content of the file was quite fascinating.
In this sentence, 'dosyanın' introduces possession to signify that the surface belongs to the file.
Dosyanın üzerinde mavi bir yazı vardı.
There was blue writing on the file.
The word 'dosyanın' here indicates the file as the subject of the action described later in the sentence.