dictionary · eo1.org

back up

Fetched 2026-10-26 (cache).

Synonyms: backup, buck up, backs up, jack up, rack up, sack up, tack up, pack up, back-up, hack up, bank up

Antonyms: backup, buck up, backs up, jack up, rack up, sack up, tack up, pack up, back-up, hack up, bank up

Related words from Datamuse; suggestions, not definitions.

Verb

  1. {{lb|en|idiomatic|intransitive}} To move [[backwards]], especially for a vehicle to do so.
  2. {{lb|en|idiomatic|transitive}} To move a vehicle backwards.
  3. {{lb|en|idiomatic|intransitive}} To [[undo]] one's [[action]]s.
  4. {{lb|en|idiomatic|intransitive}} To [[reconsider]] one's [[thought]]s.
  5. {{lb|en|idiomatic|computing|transitive}} To [[copy]] ([[data]]) so that it can be [[restore]]d if the main copy is lost.
  6. {{lb|en|idiomatic|transitive}} To provide support or the promise of support to.
  7. {{lb|en|idiomatic|intransitive|cricket}} For the [[non-striker]] to take a few [[step]]s down the [[pitch]], in [[preparation]] to taking a [[run]], just as the [[bowler]] [[bowl]]s the [[ball]].
  8. {{lb|en|idiomatic|intransitive|cricket}} For a [[fielder]] to [[position]] [[himself]] behind the [[wicket]] (relative to a team-mate who is [[throw]]ing the ball at the wicket) so as to stop the ball, and [[prevent]] [[overthrow]]s.
  9. {{lb|en|idiomatic|intransitive|of a blockage}} To [[halt]] the [[flow]] or [[movement]] of something.
  10. {{lb|en|idiomatic|intransitive|informal}} To fill up because of a [[backlog]].
  11. {{lb|en|obsolete|printing}} To run a printing press in reverse.
  12. {{lb|en|idiomatic|intransitive}} If a [[property]] backs up to another property, that means it [[abut|abuts]] or shares a [[border]] with another property.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.