Meaning of the word undo in English

What does undo mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

undo

US /ʌnˈduː/

UK /ʌnˈduː/

unfasten, untie, or unwrap (something)

Example:

•

Can you help me undo this knot?

•

She carefully undid the buttons on her coat.

Synonym:

unfasten untie unbutton unzip unclasp

Antonym:

do fasten tie wrap

cancel or reverse the effect or result of (a previous action or decision)

Example:

•

I wish I could undo what I said.

•

The software allows you to undo your last action.

Synonym:

reverse cancel negate nullify revoke

Antonym:

do perform execute