high school highsc·hool US/ˈhaɪˌskul/ fairly common noun 1. a public secondary school usually including grades 9 through 12 “he goes to the neighborhood highschool” Synonymssenior high schoolsenior highhighhighschoolhigh school Related words Broader terms secondary school WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.
