This is the 2186th most frequent Russian word.
встреч
"Встреч" is the root form related to "meeting" or "encounter" in English.
Here, 'встречу' refers to a noun meaning 'meeting' or a planned event where people come together.
Мы устроили встречу вчера вечером.
We organized a meeting yesterday evening.
In this sentence, 'повстречал' is a verb meaning 'encountered' or 'met,' derived from the root 'встреч'.
На улицах города я повстречал старого друга.
I encountered an old friend on the streets of the city.
Here, 'встреча' is again a noun meaning 'encounter' or 'meeting,' emphasizing the surprising nature of the event.