Meaning of the word "tone up" in English

What does "tone up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

tone up

US /toʊn ʌp/
UK /təʊn ʌp/

Phrasal Verb

1.

to make your muscles firmer and stronger

Example:
Regular exercise will help you tone up your body.
She's been doing Pilates to tone up her core muscles.
2.

to improve the quality or strength of something, especially a color or sound

Example:
The artist decided to tone up the colors in the painting to make them more vibrant.
The director asked the sound engineer to tone up the bass for a richer sound.