1. the mandatory retirement age
    • 定年に達する
    • reach retirement age
    • 彼は来年定年だ
    • He is due to retire next year.
    • 定年延長
    • an extension of the retirement age
    • 定年後はどうなさいますか
    • What are your plans (for) after retirement?
    • この会社は定年制がない
    • We have no mandatory retirement age here.
  1. 定年退職retirement (at the age limit)
    • 父はこの3月で定年退職する
    • My father will (reach the age limit and) retire this March.