Difference vetween an interlock and a shutdown

Interlocks or interlocking is used for like preventing differents devices/equipments to not work all together or " fight each over and cause a safety issue...like motor relays operations stop /start or other operations like lead/lag ...

Shutdown of a process is more associated to event like normal operator or unit shutdown or a unit /process trip..caused by like one of the above example can be
Or makkfunction of a component causing unit to be stopped /tripped manually or automatically by control system like DCS or Turbine controller /governor..protection system..

Any time!