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Noun: backup  'bak,úp
  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 backup for dangerous scenes";
    - stand-in, substitute, relief, reliever, backup man, fill-in
     
  3. A musical part (vocal or instrumental) that supports or provides background for other musical parts
    - accompaniment, musical accompaniment, support
     
  4. (computing) 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";
    - computer backup
     
  5. The act of providing approval and support
    "his vigorous backup of the conservatives got him in trouble with progressives";
    - backing, championship, patronage
Verb: back up
  1. Give moral or psychological support, aid, or courage to
    - support
     
  2. Move backwards from a certain position
    "The bully had to back up";
    - back off, back down
     
  3. Establish as valid or genuine
    "Can you back up your claims?";
    - back
     
  4. Make a copy of (a computer file) especially for storage in another place as a security copy
    "You'd better back up these files!"
     
  5. Become or cause to become obstructed
    "The water pipe is backed up";
    - clog, choke off, clog up, congest, choke, foul
     
  6. Move backwards, esp. drive a vehicle backwards
    - reverse

Derived forms: backed up, backing up, backs up, backups

See also: back

Type of: accretion, accumulation, affirm, approval, approving, blessing, block, close up, compeer, confirm, copy, corroborate, draw back, duplicate, duplication, equal, impede, jam, match, move back, obstruct, obturate, occlude, part, peer, pull away, pull back, recede, re-create, retire, retreat, substantiate, support, sustain, voice, withdraw

Encyclopedia: Backup

Back up