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English Dictionary: backup by the DICT Development Group
2 results for backup
From WordNet (r) 3.0 (2006) [wn]:
  1. an accumulation caused by clogging or a stoppage; "a traffic backup on the main street"; "he discovered a backup in the toilet"
  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(s): 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(s): 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(s): backup, computer backup
  5. the act of providing approval and support; "his vigorous backing of the conservatives got him in trouble with progressives"
    Synonym(s): backing, backup, championship, patronage
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
      (Sometimes "back up" when used as a verb) A
      spare copy of a file, file system or other resource for use in
      the event of failure or loss of the original.
      The term is most commonly used to refer to a copy of all the
      files on a computer's {disks} which is made periodically and
      kept on {magnetic tape} or other removable medium (also called
      a "{dump}").
      This essential precaution is neglected by most new computer
      users until the first time they experience a {disk crash} or
      accidentally delete the only copy of the file they have been
      working on for the last six months.
      Ideally the backup copies should be kept at a different site
      or in a fire safe since, though your hardware may be insured
      against fire, the data on it is almost certainly neither
      insured nor easily replaced.
      See also {differential backup}, {incremental backup}, {full
      backup}.   Compare {archive}.
No guarantee of accuracy or completeness!
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