(1) Suspension of a process, such as execution of a computer program, caused by an external event and performed in such a way that the process can be resumed.
(2) A signal sent by an I/O device to the processor when an error has occurred or when assistance is needed to complete I/O. An interrupt usually suspends the running of the program that is currently running.
(3) A condition that applies to a simulation that causes the simulation execution to be halted if the condition is met.
(4) To stop a process in such a way that it can be resumed.