This is the 4489th most frequent Russian word.
встретились
"Met" (past tense, plural).
The verb 'встретились' is used here in the past tense to describe a mutual meeting occurrence between two parties.
Мы встретились в парке вчера.
We met in the park yesterday.
The verb 'встретились' is describing an interaction, emphasizing the meeting of gazes rather than a physical encounter.
Они встретились глазами в толпе.
They met each other's gaze in the crowd.
The word 'встретились' is depicting the intent of the meeting with a clear purpose described subsequently in the sentence.