undo verb - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com

Definition of undo verb from the Oxford Advanced Learner's Dictionary

undo

verb
 
/ʌnˈduː/
 
/ʌnˈduː/
Verb Forms
present simple I / you / we / they undo
 
/ʌnˈduː/
 
/ʌnˈduː/
he / she / it undoes
 
/ʌnˈdʌz/
 
/ʌnˈdʌz/
past simple undid
 
/ʌnˈdɪd/
 
/ʌnˈdɪd/
past participle undone
 
/ʌnˈdʌn/
 
/ʌnˈdʌn/
-ing form undoing
 
/ʌnˈduːɪŋ/
 
/ʌnˈduːɪŋ/
jump to other results
  1. undo something to open something that is fastened, tied or wrapped
    • to undo a button/knot/zip
    • to undo a jacket/shirt
    • I undid the package and took out the books.
    opposite do up
  2. undo something to cancel the effect of something
    • He undid most of the good work of the previous manager.
    • It's not too late to try and undo some of the damage.
    • UNDO (= a command on a computer that cancels the previous action)
    • Just select ‘Edit’ and ‘Undo’ to cancel the previous action.
  3. [usually passive] undo somebody/something (formal) to make somebody/something fail
    • The team was undone by the speed and strength of their opponents.
    Topics Difficulty and failurec2
  4. Word OriginOld English undōn (see un-, do1).
See undo in the Oxford Advanced American Dictionary
scarecrow
noun
 
 
From the Topic
Farming
C2
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