A school classified as secondary by state practice and composed of any span of Grades 7-12 Junior high schools, middle schools and senior high schools are included
She taught history at a secondary school. A school that is intermediate in level between elementary school and college and that usually offers general, technical, vocational, or college-preparatory curricula. a school for children between the ages of 11 and 16 or 18 primary school
A secondary school is a school for pupils between the ages of 11 or 12 and 17 or
comprehensive school (UK); grade 7 to grade 12 (USA); grammar school (UK); high school (USA); junior high school (USA); secondary education (UK/USA); secondary modern education (UK); senior school (USA); sixteen to nineteen (UK); sixth form (UK); year 7 to year 13 (UK); Key Stages 3 and 4 (England & Wales)
a school for students intermediate between elementary school and college; usually grades 9 to 12
Generally refers to the years of formal education preceding to the entry into a college or University
A school comprising any span of grades beginning with the next grade following an elementary or middle-school (usually 7, 8, or 9) and ending with or below grade 12 Both junior high schools and senior high schools are included