public junior high school
Refers to a publicly funded junior high school (grades 7–9) in the Japanese education system, as opposed to private or national schools.
My child attends the local public junior high school.
私立中学校 is a private junior high school, whereas 公立中学校 is public.
国立中学校 is a national junior high school, run by the central government, while 公立中学校 is run by a local government.
Compound of 公立 (publicly established) and 中学校 (junior high school).