synchronize

Short definition from Wiktionary

Verb

1. 1
   To cause two or more events or actions to happen at exactly the same time or same rate, or in a time-coordinated way: To occur at the same time or with coordinated timing.
2. 2
   To cause two or more events or actions to happen at exactly the same time or same rate, or in a time-coordinated way: To cause (video and audio) to play in a coordinated way.
3. 3
   To set (a clock or watch) to display the same time as another.
4. 4
   To cause (a set of files, data, or settings) on one computer or device to be (and try to remain) the same as on another.
5. 5
   To agree, be coordinated with, or complement well.
6. 6
   To coordinate or combine.