This is the 6763rd most frequent Turkish word.
because
The Turkish word for "because" is "çünkü," meaning "for the reason that" or "since."
In this sentence, 'çünkü' is used to provide a reason or cause for the stated action.
Dışarı çıkmadım çünkü yağmur yağıyordu.
I didn't go outside because it was raining.
Here, 'çünkü' introduces the explanation for the described situation.
Geç kaldık, çünkü trafik yoğundu.
We were late because the traffic was heavy.
In this example, 'çünkü' is used to express the cause or reason behind the change.