算さん賀がさんがじ字FuriganaAudioMeanings1nounlongevity 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。Break this sentence down in the analyzerWe held a longevity celebration banquet for my grandfather's 60th birthday.