This is the 484th most frequent Ukrainian word.
скільки
"Скільки" means "how much" or "how many" in English.
In this sentence, "скільки" is used to ask about an amount of time needed.
Скільки часу потрібно, щоб дістатися до аеропорту?
How much time is needed to reach the airport?
Here, "скільки" inquires about the quantity of people attending.
Скільки людей прийшло на зустріч?
How many people came to the meeting?
In this case, "скільки" is used to ask about the monetary value of something.