tone up

== English == === Verb === tone up (third-person singular simple present tones up, present participle toning up, simple past and past participle toned up) (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. Antonym: tone down (transitive, intransitive) To firm and strengthen the muscles of the body by regular exercise. ==== Translations ====