Intermediate school and Junior high school

Junior high school and intermediate school are semantically related in secondary school topic. In some cases you can use "Junior high school" instead a noun phrase "Intermediate school".

Junior high school noun - A secondary school usually including 7th and 8th grades.

Intermediate school and junior high school are semantically related in generally topic. You can use "Intermediate school" instead a noun phrase "Junior high school", if it concerns topics such as secondary school, junior high and high school.