This is the 5563rd most frequent Turkish word.
neyin
The Turkish word "neyin" means "of what" or "what's," indicating possession or association.
In this sentence, 'neyin' is used to inquire about the purpose or object of pursuit, serving as 'what' in a possessive genitive structure.
Neyin peşindesin?
What are you after?
Here, 'neyin' is utilized to specify ownership or association, used as 'whose' or 'what's' in the context of the hat's color.
Bu şapkanın rengi neyin?
What is the color of this hat?
In this usage, 'neyin' questions the reason or cause of an issue, framed as 'what's wrong' or 'what's the matter' in English.