防ぼう衛えい大だい学がっ校こうMeaningsNoun1. National Defense Academy (Japan); NDAKanji used防prevent衛defend大large学study校schoolComposed of防ぼう衛えいdefense; defence; protectionNoun大だいlarge; big; great; huge; vast; major; important; serious; severe; prominent; …Prefix学がっ校こうschoolNoun