senior high school
From Longman Dictionary of Contemporary EnglishRelated topics: Schoolsenior high schoolˌsenior ˈhigh school (also senior high) noun [countable] American English SEShigh school → junior high schoolExamples from the Corpussenior high school• Cramming is not confined to the junior high school and senior high school years.• How counselors in elementary through senior high school carry out these principles is the main theme of this chapter.