junior high school

US /ˌdʒuː.njɚ ˈhaɪ skuːl/
UK /ˌdʒuː.njɚ ˈhaɪ skuːl/
"junior high school" picture
1.

مدرسة إعدادية, المرحلة الإعدادية

a school for children aged 11 to 14, typically comprising grades 7, 8, and 9, between elementary school and high school

:
My daughter is starting junior high school next year.
ابنتي ستبدأ المدرسة الإعدادية العام المقبل.
He met his best friend in junior high school.
التقى بأفضل صديق له في المدرسة الإعدادية.