7
academy(noun, education, establishment, training, institute)
6
middle school(noun, expression, school)
5
high school(noun, expression, idiom, school, generally)
5
lycee
5
lyceum
4
Gymnasium(noun, generally)
4
junior high school(noun, expression, idiom, school)
4
senior high school(noun, expression, idiom, education, school)
3
intermediate school(noun, expression, school)
3
prep school(noun, expression, school, college, brainery)
3
preparatory school(noun, expression, school, college, gymnasium)
3
seminary
2
grammar school(noun, expression, idiom)
2
junior high
2
public school
2
senior high(noun, expression, generally)
1
college
1
college preparatory school(noun, expression, idiom, school)
1
high
1
institute
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APASmart Define. (2015). secondary school thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/secondary_school/thesaurus/synonyms
ChicagoSmart Define. 2015. "secondary school thesaurus" https://smartdefine.org/secondary_school/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, secondary school thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/secondary_school/thesaurus/synonyms>.
MLASmart Define. "secondary school thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/secondary_school/thesaurus/synonyms>