六ろく三さん制せいろくさんせいMeanings1nounsix-three education systemRefers to the Japanese school system structure of six years of elementary school followed by three years of junior high school.日本にほんの六ろく三さん制せいは戦せん後ごに導どう入にゅうされた。Japan's six-three system was introduced after the war.
