Definitions
1.nounA device, mechanism or measure designed to make something fail-safe.
2.verbTo compensate automatically, in the event of a failure.
3.verbTo make a device or mechanism fail-safe, or to add a fail-safe device or mechanism to an existing system.
4.adjectiveThat does not cause undue damage in the event of failure."The system is failsafe, because everything is backed up automatically."
5.adjectiveDesigned to shut off for safety if an emergency occurs.