undo (B1)

verb

Pronunciation: /ʌnˈduː/

Definition

To reverse or cancel the effect of a previous action, decision, or situation.

Examples

• I accidentally deleted the file, but thankfully I could undo the action.

• The company tried to undo the damage caused by the scandal.

• You can always undo your last move in the game if you make a mistake.

How to Use undo

undo something (collocation)

To reverse the effect of a specific action or situation. — "He tried to undo the damage to his reputation."

undo the last action (collocation)

To reverse the most recent operation, especially in computing. — "If you make a mistake, you can always undo the last action."

Synonyms of undo

Words with a similar meaning to undo:

• reverse
• cancel
• nullify

Antonyms of undo

Words with the opposite meaning to undo:

• do
• perform
• establish

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