Definition of lip-synch
lip-synched
or lip-synced;
lip-synching
or lip-syncing;
lip-synchs
or lip-syncs
: to pretend to sing or say at precisely the same time with recorded sound
- She lip-synched the song that was playing on the radio.
: to lip-synch something
- It was obvious that she was lip-synching.
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lip sync
noun
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