Synonyms:
- atone,
- attune,
- brighten up,
- brush up,
- chord,
- fix,
- freshen,
- furbish,
- furbish up,
- polish,
- polish up,
- put in tune,
- renovate,
- repair,
- retouch,
- revive,
- rub up,
- shine,
- spruce,
- spruce up,
- string,
- tone down,
- touch up,
- tune,
- tune up,
- vamp,
- vamp up,
- voice