This is the 4239th most frequent Russian word.
четверть
"Quarter" (one-fourth or a period, such as a school term).
The word "четверть" is used to indicate a fraction of an hour, specifically one-fourth or 15 minutes.
Сейчас четверть второго.
It's quarter past one now.
Here, "четверть" is employed to describe a time duration, meaning 15 minutes.
Урок начался через четверть часа.
The lesson began in a quarter of an hour.
In this context, "четверть" represents a quarter or a fourth part of the circle, commonly used in mathematical or geometric terminology.