This is the 983rd most frequent Ukrainian word.
ч
The Ukrainian letter "ч" (ch) represents the voiceless postalveolar affricate sound, similar to "ch" in the English word "church."
In this sentence, 'чи' is used as an interrogative particle to form a yes-no question.
Чи ти вже бачив цей фільм?
Have you already seen this movie?
Here, 'чи' functions as a subordinating conjunction meaning 'whether'.
Я не знаю, чи вона прийшла на зустріч.
I don't know whether she came to the meeting.
In this example, 'чи' introduces a polite request, often used to make questions sound more gentle.