lip-sync — English Dictionary

Verb

1. To move the lips in synchronization with sounds (generally recorded) so it appears they are the source of the sounds.

   Usage

   • Transitive

   Examples

   She lip-synced to her own recording during the show because of her laryngitis.

   There was a great scandal when it was discovered the singer had been only lip-syncing.

   More examples (1)

   Tolokonnikova is one of two members of the punk group Pussy Riot who are serving two-year sentences for lip-syncing and playing air guitar for 40 seconds in a peaceful protest in the largest Moscow cathedral.

Verb

1. move the lips in synchronization (with recorded speech or song)

   Synonyms

   lip-synch

   Broader terms

   mouth