To voice again or differently; to repeat or modify the expression of something. The actor was asked to revoice his lines to better match the character's new personality.
To provide a new voice for a character in a film or animation, often in a different language. The studio hired a famous actor to revoice the animated character for the international release.
To adjust or modify the sound of a musical instrument, especially an organ or piano. The technician was called in to revoice the organ to improve its tonal quality.