This is the 9198th most frequent Turkish word.
valentin
The Turkish word "valentin" does not exist as a standard Turkish term; it may be a proper name or borrowed word referencing "Valentine."
Here, 'Valentin' is used as a proper noun referring to a person's name.
Valentin ile pikniğe gittik.
We went on a picnic with Valentin.
In this sentence, 'Valentin' is genitive, showing possession of the birthday party.
Valentin'in doğum günü partisine gideceğim.
I will go to Valentin's birthday party.
Here, 'Valentin' is used to refer to someone's name within a descriptive context.