1To resign, quit, or leave a job/position; to stop doing something (e.g., a habit or role).
彼は体調を理由に会社を辞めた。
He quit the company citing health reasons.
来月でその部署を辞めることにした。
I've decided to leave that department next month.
健康のためにタバコを辞めると決めた。
I've decided to quit smoking for my health.
長年の公職を辞めて、田舎で静かに暮らすことにした。
He resigned from his long-held public office and decided to live quietly in the countryside.