Did you know?

Click any word in a definition or example to find the entry for that word

undo - definition and synonyms

 
Close

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

more
verb undo pronunciation in American English /ʌnˈdu/
Word Forms
Close
present tense
I/you/we/theyundo
he/she/itundoes
present participleundoing
past tenseundid
past participleundone
  • Facebook
  • Twitter
  1. 1
    [transitive] to open, untie, or remove something so that it no longer closes, fastens, or connects another thing
    He quickly undid the screws that held the lid on.
    I can’t undo my belt.
  2. 2
    [transitive] to have the effect of changing something back into its original, usually worse state
    She warned that one mistake could undo all their achievements.

normcore

a fashion trend in which people intentionally wear ordinary, inexpensive, widely-available clothing

BuzzWord Article

Open Dictionary

boutonnière

a flower or small bunch of flowers worn on the lapel of a jacket on special occasions

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog