keeping vs sync

keeping

noun
  • conformity or harmony. 

  • Maintenance; support; provision; feed. 

  • charge or care. 

sync

noun
  • Harmony. 

  • A music synchronization license, allowing the music to be synchronized with visual media such as films. 

verb
  • To synchronize, especially in the senses of data synchronization, time synchronization, or synchronizing music with video. 

  • To flush all pending I/O operations to disk. 

How often have the words keeping and sync occurred in a corpus of books? (source: Google Ngram Viewer )