iron heel iron heater • iron-heeled · · · Info · Definitions · Synonyms · Characters · · iron heel · · Text Common · · Latin · · Scripts 9 · · Length 3 · · Syllables Definitions · · · (noun) an instrument of torture that is used to heat or crush the foot and leg. Synonyms: boot, the boot, iron boot, iron heel. · · Noun Definition 1 Synonyms · · · boot · · Synonym 1 the boot · · Synonym 2 iron boot · · Synonym 3 Characters · · space U+0020 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072