undo

verb
UK: /ʌnˈduː/
US: /ʌnˈduː/

  1. To cancel or reverse the effects or results of something.

    1. I want to undo my last action now. [ ] [ ]
    2. You can't undo the damage that has been done after accident. [ ] [ ]

  2. To unfasten or open something that is tied, buttoned, or zipped.

    1. Can you undo my dress now? [ ] [ ]
    2. He helped her undo the complicated clasp on her bracelet very carefully. [ ] [ ]

Synonyms

reverse cancel nullify invalidate unfasten open
undo noun

  1. The action of reversing or canceling something that has been done.

    1. There is no undo for this change. [ ] [ ]
    2. The undo feature allowed him to correct his errors immediately and safely. [ ] [ ]

Frequently Asked Questions

The word "undo" in English means: To cancel or reverse the effects or results of something., To unfasten or open something that is tied, buttoned, or zipped..

The phonetic transcription of "undo" is /ʌnˈduː/ in British English and /ʌnˈduː/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "undo": reverse, cancel, nullify, invalidate, unfasten, open.

Example usage of "undo": "I want to undo my last action now.". More examples on the page.