A duty, role, or function expected of someone; a responsibility or part to be played in a situation or job.
私の役目は会議の議事録を取ることです。
My role is to take the minutes of the meeting.
チームでの自分の役目をきちんと果たそう。
Let's properly fulfill our roles within the team.
リーダーとしての役目を放棄するわけにはいかない。
I can't abandon my responsibilities as a leader.