This is the 5451st most frequent Turkish word.
kızın
"Your daughter" or "the daughter of the girl/woman."
Here, 'kızın' is used to mean 'the girl's' and it shows possession.
Kızın saçları çok güzel görünüyor.
The girl's hair looks very beautiful.
Here, 'kızın' means 'the girl' and it is in the possessive case, although implied, which often happens in Turkish.
İlk fırsatta kızın yanına gidin.
Go to the girl as soon as possible.
Here, 'kızın' indicates that the girl is the subject performing the action, as it is possessive and marks the subject.