English dictionary

undo

noun

Pronunciation

/ʌnˈduː/

Parts of speech

Definitions

noun

  1. An operation that reverses a previous action.

verb

  1. To reverse the effects of an action.
  2. To unfasten.
  3. To impoverish or ruin, as in reputation; to cause the downfall of.

Example sentences

How many undos does this program support?
Fortunately, we can undo most of the damage to the system by the war.
Could you undo my buckle for me?

Synonyms

Antonyms

Scroll to Top