noun
designated school; priority admission school
Refers to a school that has a special relationship with a university, often allowing its students priority or preferential admission. Common in the context of university entrance systems in Japan.
この大学の指定校推薦で入学した。
I entered through this university's designated school recommendation.
指定校の枠は毎年変わる。
The designated school slots change every year.
Compound of 指定 (designation) and 校 (school).