noun
six-three-three-four education system
Refers to the standard Japanese school system: 6 years elementary, 3 years junior high, 3 years senior high, 4 years university.
See also: 六三制
日本の六三三四制は戦後に導入された。
Japan's six-three-three-four system was introduced after the war.
六三制 refers specifically to the six-three part (elementary and junior high), while 六三三四制 includes senior high and university.
Compound of 六 (six), 三 (three), 三 (three), 四 (four), and 制 (system), describing the years of each educational stage.