backupsystem
nounUK /ˈbækʌp ˌsɪstəm/
US /ˈbækʌp ˌsɪstəm/
A backup system is a way to keep a copy of your important things so you don't lose them.
The school uses a backup system to save all the students' work every night.
RELATED WORDS
OTHER MEANINGS
2. A second set of machines or equipment that can be used if the main ones stop working.
The hospital has a backup system for power in case of a blackout.
3. A plan or person ready to help if the first one cannot.
The coach kept a backup system of players ready on the bench.
4. A way of saving computer files in another place so they are safe.
He set up a backup system to copy his photos to the cloud.