1. the occurrence of events at the same time; simultaneity
2. the arrangement or treatment of synchronous things or events
Usage: technical

Examples

• The synchronism of the two clocks was perfect.
• Scientists studied the synchronism of brain waves during sleep.
• The synchronism between the music and the dancers was remarkable.
• The film editor worked to achieve synchronism between sound and image.
• The synchronism of the traffic lights helped reduce congestion.
• Researchers noted the synchronism of seasonal changes across regions.