社しゃ会かい保ほ険けん大だい学がっ校こうMeaningsNoun1. Social Insurance Training InstituteKanji used社company会meeting保preserve険risky and steep大large学study校schoolComposed of社しゃ会かい保ほ険けんsocial insuranceNoun大だいlarge; big; great; huge; vast; major; important; serious; severe; prominent; …Prefix学がっ校こうschoolNoun