Redub is a term used in the audio and video processing industry to describe the process of re-recording and syncing a new voiceover or soundtrack to an existing video. There are several synonyms for the word "redub" and they are commonly used in different contexts. For instance, some people prefer to use the term "revoice" instead of "redub" when referring to the process of re-recording new dialogue or voiceovers for a video or film. Other synonyms for the word "redub" include re-record, overdub, dub-over, and resync. Regardless of the term used, the objective of the redubbing process remains to refine and enhance the audio and visual quality of the final video product.