Failsafe (noun)

A system or mechanism that is designed to prevent disaster or failure in the event of a primary system malfunction.

Origin:

Failsafe is a noun that refers to a system or mechanism that is designed to prevent disaster or failure in the event of a primary system malfunction. it comes from the idea of fail-safe, meaning that it is safe in the event of failure.

Examples:

1. The building's emergency lighting system is a failsafe in case of power outages.
2. The airplane's failsafe system ensures that the engines will shut off in the event of a malfunction.
3. The nuclear power plant has a failsafe system to prevent a meltdown.
4. The computer system has a failsafe mechanism to prevent data loss in case of hardware failure.
5. The voting system has a failsafe to ensure that every vote is counted.