This is the 481st most frequent Russian word.
момента
The Russian word "момента" is the genitive singular or accusative plural form of "момент," meaning "moment" or "point in time."
Used as a time marker to indicate the point since an event occurred.
С момента его приезда прошло уже три дня.
Three days have passed since his arrival.
Indicates a specific point in time or occasion.
Этот кадр был снят в самый лучший момент.
This shot was taken at the best moment.
Refers to an opportunity or specific instance not to be missed.