What does back up mean?

Definitions for back up

Here are all the possible meanings and translations of the word back up.

Princeton's WordNet

  1. support, back up(verb)

    give moral or psychological support, aid, or courage to

    "She supported him during the illness"; "Her children always backed her up"

  2. back up, back off, back down(verb)

    move backwards from a certain position

    "The bully had to back down"

  3. back, back up(verb)

    establish as valid or genuine

    "Can you back up your claims?"

  4. back up(verb)

    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. clog, choke off, clog up, back up, congest, choke, foul(verb)

    become or cause to become obstructed

    "The leaves clog our drains in the Fall"; "The water pipe is backed up"


  1. back up(Verb)

    To move backwards, especially for a vehicle to do so.

  2. back up(Verb)

    To move a vehicle backwards.

  3. back up(Verb)

    To undo one's actions.

  4. back up(Verb)

    To reconsider one's thoughts.

  5. back up(Verb)

    To copy (data) as a security measure.

  6. back up(Verb)

    To provide support or the promise of support.

  7. back up(Verb)

    For the non-striker to take a few steps down the pitch, in preparation to taking a run, just as the bowler bowls the ball.

  8. back up(Verb)

    For a fielder to position himself behind the wicket (relative to a team-mate who is throwing the ball at the wicket) so as to stop the ball, and prevent overthrows.

  9. back up(Verb)

    to halt the flow or movement of something.

Editors Contribution

  1. back up

    To copy data from a computer, device, data storage unit, data server, laptop, mobile phone, smartphone, tablet computer or other form of technology to a form of cloud storage, cloud computer, cloud network, computer network, datacenter or other type of technology that you have permission or a password to access to copy and store data onto.

    Most smartphone, laptops, computers and servers have a back up facility on them that can be accessed and used when they are needed.


  1. Chaldean Numerology

    The numerical value of back up in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of back up in Pythagorean Numerology is: 9

Sample Sentences & Example Usage

  1. Joel Chusid:

    The market will come back up.

  2. Francis East:

    Just to see Old Glory go back up over Cuba.

  3. Cierra Martin:

    The seed vault is the back-up of the back-up.

  4. Republican Rep. Duncan Hunter:

    Lacy can put it back up, I guess, if he wants to.

  5. Unknown:

    Failure isn’t falling. It’s refusing to get back up.

Images & Illustrations of back up

  1. back upback upback up

Translations for back up

From our Multilingual Translation Dictionary

  • peruuttaaFinnish
  • sauvegarder, reculer, sauvegarde, faire marche arrièreFrench
  • teruggaan, achteruitrijdenDutch
  • da înapoiRomanian
  • делать резервное копирование, возвращаться, делать бэкап, давать задний ход, возвращать, забэкапить, двигаться назад, сдавать назадRussian
  • yedeklemekTurkish
  • sao lưuVietnamese

Get even more translations for back up »


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