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1. 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
   - lip synchronization, lip synchronisation [Brit], lip sync

1. Move the lips in synchronization (with recorded speech or song)
   "The best rock 'n' roll TV performers look at lip-synch shows as an opportunity to perform in ways that the mechanics of live don't allow"
   - lip-sync

Derived forms: lip-synching, lip-synchs, lip-synched

Type of: mouth, recording, transcription

Encyclopedia: Lip synch