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1. The relation that exists when things occur at the same time
   - synchronism, synchrony, synchronicity, synchroneity, synchronization, synchronisation [Brit], synch, sync, synchronising [Brit]
    
2. An adjustment that causes something to occur or recur in unison
   - synchronization, synchronisation [Brit], synchronising [Brit]
    
3. Coordinating by causing to indicate the same time
   "the synchronizing of their watches was an important preliminary";
   - synchronization, synchronisation [Brit], synchronising [Brit]

1. Make synchronous and adjust in time or manner
   "Let's synchronize our efforts";
   - synchronise [Brit], sync, synch
    
2. Happen at the same time
   - synchronise [Brit], contemporize, contemporise [Brit]
    
3. (movie) make (motion picture sound) exactly simultaneous with the action
   "synchronize this film";
   - synchronise [Brit]
    
4. Arrange or represent events so that they co-occur
   "synchronize biblical events";
   - synchronise [Brit], contemporize, contemporise [Brit]
    
5. Operate simultaneously
   "The clocks synchronize";
   - synchronise [Brit]
    
6. Cause to indicate the same time or rate
   "synchronize your watches";
   - synchronise [Brit]

Type of: adjust, adjustment, align, aline [non-standard], alter, arrange, change, come about, control, coordination, correct, fall out, go on, hap [archaic], happen, line up, modify, occur, operate, order, pass, pass off, put, readjustment, registration, set, set up, take place, temporal relation

Antonym: desynchronise [Brit]

Encyclopedia: Synchronizing