B2nountechnology
US/ˈbæk.ʌp/
UK/ˈbæk.ʌp/
a copy of computer files kept safe in case the original is lost; also extra help or support
In context
Always keep a backup of your thesis on a separate drive.
The hospital has a backup generator in case the power goes off.
The police officer called for backup when the crowd grew angry.
Words that go with backup
verb + noun
- make a backupMake a backup before you update your phone.
- call for backupThe guard had to call for backup.
noun + noun
- backup copyI keep a backup copy of my photos in the cloud.
- backup planIf it rains, our backup plan is to visit the museum.
- backup generatorThe factory switched to a backup generator during the blackout.
Common mistakes
Incorrect:
Remember to backup your data.Correct: Remember to back up your data.