undo
Pronunciation
  • (America, British) IPA: /ʌnˈduː/
Verb

undo (undoes, present participle undoing; past undid, past participle undone) (transitive)

  1. To reverse the effects of an action.
    Fortunately, we can undo most of the damage to the system by the war.
    • 1610–1611, William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act I, scene ii], page 4 ↗, column Pro.}} […] it was a torment / To lay vpon the damn'd, which Sycorax / Could not againe vndoe ; it was mine Art, / When I arriu'd, and heard thee, that made gape / The Pyne, and let thee out.:
      {w
  2. To unfasten.
    Could you undo my buckle for me?
  3. (figuratively) To impoverish or ruin, as in reputation; to cause the downfall of.
    • 1611, King James Bible
      Woe is me, for I am undone!
Synonyms Antonyms Translations Translations Noun

undo (plural undos)

  1. (computing) An operation that reverses a previous action.
    How many undos does this program support?
Adjective
  1. Misspelling of undue



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