undo

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Pronunciation[change]

  • IPA: /ʌnˈduː/
  • SAMPA: /Vn"du:/
  • Hyphenation: un‧do

Homophones[change]

Verb[change]

Plain form
undo

Third person singular
undoes

Simple past
undid

Past participle
undone

Present participle
undoing

  1. (transitive) If you undo an action, you reverse it.
    We can undo the damage to the system.
  2. (transitive) If you undo something, unfasten it.
    Could you undo my buckle for me?