backup

B2
Pronunciation
/ˈbækˌʌp/
Noun
4 definition(s)
1 Definition

A reserve or substitute.

Example Sentences
  • If the goalkeeper is injured, we have a backup.
2 Definition

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.

Example Sentences
  • After the power failure, we had to restore the database from backup.
3 Definition

An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement of the material, or an accumulation of material that causes an overflow due to the flow being greater than the maximum possible flow.

Example Sentences
  • The accident caused a mile-long backup on the highway.
4 Definition

(law enforcement) reinforcements

Example Sentences
  • He's got a gun! You'd better send for backup.
Adjective
3 definition(s)
1 Definition

Standby, reserve or extra.

Example Sentences
  • I am only a backup player.
2 Definition

That is intended as a backup.

Example Sentences
  • Make a backup copy of that file.
3 Definition

Supporting, reinforcing; of or related to accompaniment