This is the 2704th most frequent Turkish word.
çalışkan
Hardworking.
In this sentence, 'çalışkan' emphasizes the subject's hardworking nature in a commendable tone.
Sen ne kadar çalışkan birisin!
You are such a hardworking person!
The adjective 'çalışkan' describes a person's quality of being hardworking or diligent.
O çok çalışkan bir öğrencidir.
She is a very diligent student.
Here 'çalışkan' is used to characterize people as industrious in general.