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'back up' in a sentence

Learn how to use 'back up' with 3 example sentences.


back up verb

: give moral or psychological support, aid, or courage to

: move backwards from a certain position

: establish as valid or genuine

: make a copy of (a computer file) especially for storage in another place as a security copy

: become or cause to become obstructed


  • Back up all your work.
  • My dinner just came back up to say hello.
  • Could you put your seat back up a little?
  • Words related to 'back up'


    Words near 'back up' in the dictionary