Resignation: the act of quitting an office or position, often indicating voluntary departure from a post.
社長は健康上の理由で辞職した。
The president resigned for health reasons.
辞職届を提出して、正式に職を離れた。
He submitted his letter of resignation and officially left the job.
政治家の辞職が世間の注目を集めた。
The politician's resignation attracted public attention.