undo
undo
(ʌnduː )Word forms: 3rd person singular present tense undoes , present participle undoing , past tense undid , past participle undone
1. verb
If you undo something that is closed, tied, or held together, or if you undo the thing holding it, you loosen or remove the thing holding it.
I managed secretly to undo a corner of the parcel. [VERB noun]
I undid the bottom two buttons of my yellow and grey shirt. [VERB noun]
Some clamps that had held the device together came undone. [VERB-ed]
2. verb
A heavy-handed approach from the police could undo that good impression. [VERB noun]
She knew it would be difficult to undo the damage that had been done. [VERB noun]
If Michael won, he would undo everything I have fought for. [VERB noun]
3. verb [usually passive]
They were undone by a goal from John Barnes. [be V-ed by n]
Macbeth is the story of a Scottish soldier who becomes king but is undone by his own ambition. [be V-ed by n]
