junior high school student; middle school pupil
Refers to a student in the three years of junior high school (grades 7–9 in the Japanese system).
My younger sister will become a junior high school student next year.
When I was a junior high school student, I commuted by bicycle every day.
My son is a junior high school student.
Next year, my little brother will become a junior high school student.
Back when I was a junior high school student, I used to play soccer a lot.