全ぜん日にち制せい高こう校こう

• 定てい時じ制せい高こう校こう

  Part-time high school, often with evening classes, contrasting with the full-time daytime schedule of 全日制高校.

• 通つう信しん制せい高こう校こう

  Correspondence high school, where students study primarily at home, unlike the daily attendance of 全日制高校.

Compound of 全日制 (full-time system) and 高校 (high school). The term is a straightforward modern educational classification.