This is the 6321st most frequent Russian word.
участвует
"Participates" or "takes part."
In this sentence, 'участвует' is used to mean 'actively takes part' in an event or activity.
Он активно участвует в обсуждении проекта.
He actively participates in the project's discussion.
Here, 'участвует' indicates being involved in a competitive activity or contest.
Она участвует в соревнованиях по плаванию.
She participates in swimming competitions.
In this usage, 'участвует' conveys involvement by an organization in events or actions for a cause.