high school

Short definition from Wiktionary

Noun

1. 1
   An institution which provides all or part of secondary education.
2. 2
   A secondary school.
3. 3
   A secondary education school, consisting of junior high school and senior high school (grades 7-12)
4. 4
   A secondary education school for years 1-4 (now junior high school)
5. 5
   Alternative form of high school.