Tone-up

What is Tone-up?

Tone-up definition and meaning on Dictionary terms:
noun
an exercise for toning up one’s body.

 

reference: https://www.dictionary.com/browse/tone-up

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Tone up

What is Tone up ?

Tone up is (verb) to make your body firmer or fitter

 

source: Easier English, Student Dictionary Upper Intermediate Level