tone up

English

Verb

tone up (third-person singular simple present tones up, present participle toning up, simple past and past participle toned up)

1. (transitive, intransitive) To cause to give a higher tone or sound; to give a higher tone to; to make more intense; to heighten; to strengthen.
2. (transitive, intransitive) To firm and strengthen the muscles of the body by regular exercise.

Translations

to firm and strengthen the body through exercise

• Catalan: tonificar (ca)
• Maori: whakamārohirohi