noun
prestigious numbered high school (Meiji period)
Refers to one of the eight earliest and most prestigious high schools established during the Meiji period, often designated by numbers (e.g., 第一高等学校). A historical term; not used for modern schools.
wasei-eigo (Japanese-coined English), from number school
彼の祖父はナンバースクールの出身だそうだ。
I hear his grandfather graduated from one of the prestigious numbered high schools.
ナンバースクールは明治時
The numbered high schools were symbols of elite education in the Meiji period.