noun
middle and high school
Abbreviation for 中学校と高等学校. Used in contexts like 中高一貫校 (combined junior and senior high school).
この地域には中高一貫校が多い。
There are many combined junior and senior high schools in this area.
中高の教
I will get a teaching license for middle and high school.
noun
medium and high level
Used in technical or grading contexts to describe a range from medium to high, e.g., difficulty, frequency, or proficiency.
この問題の難易度は中高レベルです。
The difficulty of this problem is at a medium to high level.