syncing up

Verb

sync up (third-person singular simple present syncs up, present participle syncing up or synching up, simple past and past participle synced up or synched up)

1. (ambitransitive, informal) To synchronize.
   • Many people believe in menstrual synchrony, the idea that women's menstrual periods sometimes sync up when they work closely together, but the scientific methodology for confirming its existence remains weaker than many assume.
   1. (ambitransitive, informal, transitive) To synchronize (footage) so that the audio and video components play together in correct alignment.
      • You could tell that the video and the audio hadn't been synced up properly, so watching the movie was kind of annoying.