This is the 3726th most frequent Russian word.
участником
The Russian word "участником" translates to "participant" in English.
The word 'участником' here is used in the instrumental case to indicate the role or involvement in the event.
Он стал участником конференции.
He became a participant of the conference.
Here the word 'участник' is in the nominative case and shows the subject of the sentence.
Каждый участник должен подписывать соглашение.
Every participant must sign the agreement.
The word 'участником' is used in its instrumental form to describe the result of the action performed.