- IPA: /ˈbæk.ʌp/
backup (plural backups)
- A reserve or substitute.
- If the goalkeeper is injured, we have a backup.
- (computing) A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged.
- After the power failure, we had to restore the database from backup.
- An accumulation of material that halts the flow or movement of something.
- The blockage caused a backup in the plumbing.
- (law enforcement) reinforcements
- He's got a gun - you better send for backup.
- (reserve): reserve, stand-in, spare, substitute
- (computing: copy of a file or record):
- (accumulation of material that halts flow): block, blockage
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
backup (not comparable)
- standby, reserve or extra
- I am only a backup player.
- (computing) That is intended as a backup.
- Make a backup copy of that file.
Back-up is an alternative spelling of backup. Both spellings are used as either a noun or an adjective. Back up is always spelled as two words and never with a hyphen. That spelling is a verb phrase not used as either an noun or an adjective.