face-harden face hammer • face joint · · · Info · Definitions · Characters · · face-harden · · Text Common · · Latin · · Scripts 11 · · Length Definitions · · · (verb) harden steel by adding carbon. · · Verb Definition 1 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 n latin small letter n U+006E r latin small letter r U+0072