Meaning of lip-sync
Pronunciation: (lip'singk"), [key]
— Motion Pictures, Television. Motion Pictures,Television.
- to synchronize (recorded sound) with lip movements, as of an actor in a film.
- to match lip movements with (recorded speech or singing): She did a clumsy job of lip-syncing her big song.
- the technical process by which this is done.
- the simultaneous recording of voice and picture, esp. the synchronization of lip movements with recorded sound.