i Register
In some senses, undo is marked as figuratively, colloquial. Watch for register when choosing this word.
undo
UK /ʌnˈduː/ US /ʌnˈduː/
verb 4noun 1adj 1
Definitions
verb
1
To reverse the effects of an action.
Fortunately, we can undo most of the damage to the system by the war.
What's done can't be undone.
2
To unfasten.
Could you undo my buckle for me?
3
To unfasten the clothing of (a person).
PROSTITUTE: Undo me. There's a dear.
4
To impoverish or ruin, as in reputation; to cause the downfall of.
Woe is me, for I am undone!
noun
1
An operation that reverses a previous action.
How many undos does this program support?
adj
1
Misspelling of undue.
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