(computing, transitive, intransitive) 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.
(intransitive) To occur at the same time or with coordinated timing.
(intransitive, of inanimate entities) To agree, be coordinated with, or complement well.
(transitive) To cause (video and audio) to play in a coordinated way.
(transitive) To coordinate or combine.
(transitive) To set (a clock or watch) to display the same time as another.
