Middle School, Junior High School
noun
You know that 学校 means school. So, people who are in the middle school are in... wait for it... middle school. And, of course, if you're one of those people that call it junior high school you can do that too.
ちゅうがっこう
The reading is a combination of 学校 and 中. Really, it's all on'yomi too, so you should be able to read this one. Take note of the がく turning to がっ, though.
このコンビニには中学校の生徒がよく来ます。
Junior high school students often come to this convenience store.
中学校には茶道のクラブもありますよ。
There is also a tea ceremony club in junior high school.
中学校の時の先生のおかげで、空手をはじめたんです。
Thanks to my junior high school teacher, I started karate.