Definitions for undoʌnˈdu

This page provides all possible meanings and translations of the word undo

Random House Webster's College Dictionary

un•doʌnˈdu(v.t.)-did, -done, -do•ing.

  1. to reverse the doing of.

  2. to repair or erase:

    to undo the damage.

  3. to bring to ruin; destroy.

  4. to unfasten or unlatch.

  5. to untie.

Origin of undo:

bef. 900


Princeton's WordNet

  1. undo(verb)

    cancel, annul, or reverse an action or its effect

    "I wish I could undo my actions"

  2. unmake, undo(verb)

    deprive of certain characteristics

  3. undo(verb)

    cause the ruin or downfall of

    "A single mistake undid the President and he had to resign"

  4. untie, undo, loosen(verb)

    cause to become loose

    "undo the shoelace"; "untie the knot"; "loosen the necktie"

  5. unwrap, undo(verb)

    remove the outer cover or wrapping of

    "Let's unwrap the gifts!"; "undo the parcel"

Kernerman English Learner's Dictionary

  1. undo(verb)ʌnˈdu

    to unfasten sth

    Undo your coat.

  2. undoʌnˈdu

    to reverse the effects of sth

    It took a long time to undo all his mistakes.


  1. undo(Verb)

    To reverse the effects of an action.

    Fortunately, we can undo most of the damage to the system by the war.

  2. undo(Verb)

    To unfasten.

    Could you undo my buckle for me?

Webster Dictionary

  1. Undo(verb)

    to reverse, as what has been done; to annul; to bring to naught

  2. Undo(verb)

    to loose; to open; to take to piece; to unfasten; to untie; hence, to unravel; to solve; as, to undo a knot; to undo a puzzling question; to undo a riddle

  3. Undo(verb)

    to bring to poverty; to impoverish; to ruin, as in reputation, morals, hopes, or the like; as, many are undone by unavoidable losses, but more undo themselves by vices and dissipation, or by indolence


  1. Undo

    Undo is a command in many computer programs. It erases the last change done to the document reverting it to an older state. In some more advanced programs such as graphic processing, undo will negate the last command done to the file being edited. The opposite of undo is redo. The redo command reverses the undo or advances the buffer to a more current state. In most Windows applications, the Undo command is activated by pressing the Ctrl+Z or Alt+Backspace keybindings. In virtually all Macintosh applications, the Undo command is activated by pressing Command-Z. The common command for Redo on Microsoft Windows systems is Ctrl+Y or Ctrl+Shift+Z. The common command for Redo on Apple Macintosh systems is Command-Shift-Z.

Anagrams of undo

  1. udon

Translations for undo

Kernerman English Multilingual Dictionary


to unfasten or untie

Could you undo the knot in this string?

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