expression, godan verb (-ru)
play a central role; take a leading part
Used when someone or something is at the core of an activity, project, or group, often implying active leadership or being the main figure.
彼女はプロジェクトで中心となって活躍した。
She played a central role in the project.
この会議では、環境問題
Environmental issues will likely take center stage at this conference.