We found 3 dictionaries that define the word to tone up:

General (3 matching dictionaries)

1. to tone up: Wordnik
2. To tone up: Dictionary.com
3. to tone up: FreeDictionary.org

▸ Words similar to to tone up ▸ Usage examples for to tone up ▸ Idioms related to to tone up ▸ Wikipedia articles (New!) ▸ Words that often appear near to tone up ▸ Rhymes of to tone up ▸ Invented words related to to tone up