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/ |
- 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.
- 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.
- [usually passive] undo somebody/something (formal) to make somebody/something fail
- The team was undone by the speed and strength of their opponents.
Word OriginOld English undōn (see un-, do1).