Definition of Backup:

  1. An extra copy of data from a computer.

  2. Protection of important data by making one or more duplicate (redundant) copies of the original at frequent intervals. These copies are stored at different (preferably off-site) locations (either on other computers via internet or on storage media such as disk, tape, CDs) to minimize the chance of loss by accident, mistake, or sabotage.

  3. An overflow caused by a stoppage, as in water or automobile traffic.

  4. Alternative or substitute resource employed or prepared to ensure continuity of an activity, program, or project in case the principle or primary resource fails or is unavailable.

  5. Help or support.

Synonyms of Backup

About-face, About-turn, Advocate, Agent, Alter ego, Alternate, Alternative, Amicus curiae, Analogy, Attorney, Back track, Back trail, Backing, Backing off, Backing out, Backing up, Backup man, Champion, Change, Changeling, Comparison, Copy, Counterfeit, Deputy, Double, Dummy, Equal, Equivalent, Ersatz, Exchange, Executive officer, Exponent, Fake, Figurehead, Fill-in, Ghost, Ghostwriter, Imitation, Lieutenant, Locum, Locum tenens, Makeshift, Metaphor, Metonymy, Mock, Next best thing, Paranymph, Personnel, Phony, Pinch, Pinch hitter, Pleader, Procurator, Provisional, Proxy, Relief, Replacement, Representative, Reserve, Reserves, Reversal, Reverse, Reversing, Reversion, Right-about, Right-about-face, Ringer, Second in command, Second string, Secondary, Sign, Spare, Spares, Stand-in, Stopgap, Sub, Substituent, Substitute, Substitution, Succedaneum, Superseder, Supplanter, Surrogate, Swingaround, Symbol, Synecdoche, Temporary, Tentative, Third string, Token, Turnabout, Turnaround, Understudy, Utility, Utility man, Utility player, Vicar, Vicar general, Vicarious, Vice, Vice-president, Vice-regent, Vicegerent, Volte-face, Help, Support, Assistance, Aid

How to use Backup in a sentence?

  1. No police backup could be expected.
  2. There are long backups on all routes.
  3. Make a backup of any important files.

Meaning of Backup & Backup Definition

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