This is the 85th most frequent Russian word.
пока
"Пока" - "Bye" or "For now."
In this sentence, 'пока' is used as a casual way to say 'goodbye' in Russian.
Пока!
Bye!
Here, 'пока' means 'until,' expressing the time frame of the action.
Я буду здесь, пока ты не вернёшься.
I will stay here until you return.
In this context, 'пока' means 'so far' or 'for now,' indicating the current state of affairs.