[lip-singk] 
Movies, Television.| 1. | to synchronize (recorded sound) with lip movements, as of an actor in a film. |
| 2. | to match lip movements with (recorded speech or singing): She did a clumsy job of lip-syncing her big song. |
| 3. | the technical process by which this is done. |
| 4. | the simultaneous recording of voice and picture, esp. the synchronization of lip movements with recorded sound. |
| lip sync | |
noun | |
| combining audio and video recording in such a way that the sound is perfectly synchronized with the action that produced it; especially synchronizing the movements of a speaker's lips with the sound of his speech [syn: lip synchronization] |