syn·chro·nize / ˈsingkrəˌnīz/ • v. [tr.] cause to occur or operate at the same time or rate: soldiers used watches to synchronize movements synchronize your hand gestures with your main points. ∎ [intr.] occur at the same time or rate: sometimes converging swells will synchronize to produce a peak. ∎ adjust (a clock or watch) to show the same time as another: It is now 5:48. Synchronize watches. ∎ [intr.] tally; agree: their version failed to synchronize with the police view. ∎ coordinate; combine: both media synchronize national interests with multinational scope.DERIVATIVES: syn·chro·ni·za·tion / ˌsingkrənəˈzāshən/ n.syn·chro·niz·er n.