concurrency
noun/kəŋˈkʌɹənsi/
1
The property or an instance of being concurrent; something that happens at the same time as something else.
2
Computer, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Science, Sciences Broadly A property of systems where several processes execute at the same time.
3
Civil engineering, Engineering, Natural sciences, Physical sciences, Road, Transport A stretch of road that is shared between two or more numbered or named routes.