Entry 1 sense Webster, 1913 Synchronization /sĭngˌ-krən-əz-āsh'-ən/ · Syn·chro·ni·za·tion · IPA /sˌɪŋkrənəzˈeɪʃən/ 01 n. The act of synchronizing; concurrence of events in respect to time. 1. The act of synchronizing; concurrence of events in respect to time.