算さん賀がさんがじ字FuriganaMeanings1nounlongevity celebrationA traditional Japanese celebration held on certain milestone birthdays (40th, 50th, 60th, etc.) to wish for long life. The term is somewhat formal and may be encountered in historical or cultural contexts.祖そ父ふの還かん暦れきに算さん賀がの宴うたげを開ひらいた。We held a longevity celebration banquet for my grandfather's 60th birthday.
