大だい還かん暦れきMeaningsNoun1. 120th birthdayKanji used大large還finally return暦calendarComposed of大だいlarge; big; great; huge; vast; major; important; serious; severe; prominent; …Prefix還かん暦れきkanreki; one's 60th birthday (or 61st in the traditional age reckoning system) when one has lived through a full sexagenary cycleNoun