noun
retirement age; age limit
The age at which a person must retire from a job, often set by company rules or law.
この会社の定年は60歳です。
The retirement age at this company is 60.
noun, noun or participle which takes 'suru', intransitive verb
retirement; mandatory retirement
The act of retiring upon reaching the retirement age. Often used in the phrase 定年退職.
See also: 定年退職
父は来年定年を迎える。
My father will reach retirement age next year.
彼は60歳で定年退職した。
He retired at the age of 60.
noun
minimum service years for promotion eligibility
Only when written 停年
Historical term used in the Imperial Japanese Army and Navy; refers to the required years of service at a rank before promotion consideration.
旧日本軍では、停年を満たさないと昇進できなかった。
In the former Japanese military, one could not be promoted without fulfilling the minimum service years.