noun
voluntary retirement; voluntary resignation
Refers to leaving a job by one's own choice, as opposed to being fired or laid off. Often used in contrast with 勧奨退職 (encouraged retirement) or 解雇 (dismissal).
会社の業績が悪化し、自主退職を選ぶ社員が増えた。
As the company's performance worsened, more employees chose voluntary retirement.
自主退職の場合、退職金はどうなりますか。
What happens to the retirement allowance in the case of voluntary resignation?