high school

US /ˈhaɪ skuːl/
UK /ˈhaɪ skuːl/
"high school" picture
1.

High School, Gymnasium

a secondary school for students typically between the ages of 14 and 18

:
She graduated from high school last year.
Sie hat letztes Jahr die High School abgeschlossen.
My brother is still in high school.
Mein Bruder ist noch auf der High School.