tone-up tone up • tone wheel · · · Info · Definitions · Synonyms · Characters · · tone-up · · Text Common · · Latin · · Scripts 7 · · Length 3 · · Syllables Definitions · · · (verb) give a healthy elasticity to. Synonyms: tone, tone up, strengthen. Example: "Let's tone our muscles." · · Verb Definition 1 Synonyms · · · tone · · Synonym 1 tone up · · Synonym 2 strengthen · · Synonym 3 Characters · · - hyphen-minus U+002D e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074 u latin small letter u U+0075