Definition of syncs:
(v) :
(informal) To synchronize, especially in the senses of data synchronization, time synchronization, or synchronizing music with video.
(v) :
(informal, computing) To flush all pending I/O operations to disk.
(n) :
Harmony.
(n) :
(music) A music synchronization license, allowing the music to be synchronized with visual media such as films.
(n) :
Clipping of synchronization or synchrony.