To cause to occur or operate at the same time or rate. The director synchronized the dancers' movements with the music.
To adjust (a clock or watch) to show the same time as another. He synchronized his watch with the official time before the race started.
To coordinate or match the timing of. The software allows users to synchronize their files across multiple devices.
To occur or operate at the same time; to be in sync. Their heartbeats seemed to synchronize after a few moments.