This is the 32nd most frequent Turkish word.
üzerine
"Üzerine" means "on," "onto," "over," or "about," depending on the context.
In this sentence, 'üzerine' is used to denote placement on the top surface of an object.
Kitabını masanın üzerine koydu.
He placed his book on top of the table.
Here, 'üzerine' indicates transition or application onto a medium.
Düşüncelerini yazı üzerine aktardı.
He conveyed his thoughts onto the text.
In this context, 'üzerine' is used to specify the subject matter or about what something revolves.