jack boot jackboot • jack-booted · · · Info · Definitions · Characters · · jack boot · · Text Common · · Latin · · Scripts 9 · · Length 2 · · Syllables Definitions · · · (noun) (19th century) a man's high tasseled boot. Synonyms: Hessian boot, hessian, jackboot, Wellington, Wellington boot. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 j latin small letter j U+006A k latin small letter k U+006B o latin small letter o U+006F t latin small letter t U+0074