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Meaning & Definition of Backup in English

English

Backup

/bækəp/

noun

1. An accumulation caused by clogging or a stoppage

  • "A traffic backup on the main street"
  • "He discovered a backup in the toilet"
synonym:
  • backup

2. Someone who takes the place of another (as when things get dangerous or difficult)

  • "The star had a stand-in for dangerous scenes"
  • "We need extra employees for summer fill-ins"
synonym:
  • stand-in,
  • substitute,
  • relief,
  • reliever,
  • backup,
  • backup man,
  • fill-in

3. A musical part (vocal or instrumental) that supports or provides background for other musical parts

synonym:
  • accompaniment,
  • musical accompaniment,
  • backup,
  • support

4. (computer science) a copy of a file or directory on a separate storage device

  • "He made a backup in case the original was accidentally damaged or erased"
synonym:
  • backup,
  • computer backup

5. The act of providing approval and support

  • "His vigorous backing of the conservatives got him in trouble with progressives"
synonym:
  • backing,
  • backup,
  • championship,
  • patronage