middle school
US /ˈmɪd.əl ˌskuːl/
UK /ˈmɪd.əl ˌskuːl/

1.
ortaokul
a school for children between the ages of about 11 and 14, typically comprising grades 6, 7, and 8
:
•
My daughter just started middle school this year.
Kızım bu yıl ortaokula başladı.
•
He teaches history at a local middle school.
Yerel bir ortaokulda tarih öğretiyor.