大だい還かん暦れきMeanings1noun120th birthdayA celebration of reaching 120 years of age, twice the traditional 還暦 (60th birthday). Rare in practice, but used in longevity contexts.大だい還かん暦れきを迎むかえる人ひとは極きわめて稀まれだ。People who reach their 120th birthday are extremely rare.
