toughen tough • toughener · · · Info · Definitions · Characters · · toughen · · Text Latin · · Script 7 · · Length Definitions · · · (verb) make tough or tougher. Example: "This experience will toughen her." · · Verb Definition 1 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075