junior high junior-grade • junior high school · · · Info · Definitions · Synonyms · Characters · · junior high · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a secondary school usually including 7th and 8th grades. Synonyms: junior high school, junior high. · · Noun Definition 1 Synonyms · · · junior high school · · Synonym 1 Characters · · space U+0020 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 j latin small letter j U+006A n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 u latin small letter u U+0075