1Short for 中学校 (junior high / middle school), the lower secondary school stage after elementary school in Japan (grades 7–9). In everyday speech, this short form is used more often than the full 中学校.
私は地元の中学に通っていた。
I attended the local junior high school.
中学の英語は文法が中心だ。
English in junior high school focuses mainly on grammar.
中学の友達と久しぶりに会った。
I met my junior high school friends after a long time.