The meaning of UNDO is to open or loose by releasing a fastening. How to use undo in a sentence.

UNDO meaning: 1. to unfasten something that is fastened or tied: 2. to remove the good or bad effects of an…. Learn more.

to undo the havoc done by the storm. In the end his lies undid him. to undo a gate; to undo a button. to untie or loose (a knot, rope, etc.). to open (a package, wrapping, etc.). Archaic. to …

UNDO definition: 1. to unfasten something that is fastened or tied: 2. to remove the good or bad effects of an….

undo翻译：解开, 解开;打开;拆开, 消除效果, 消除，抵消（行为的效果）。了解更多。

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. Just select ‘Edit’ and ‘Undo’ to cancel the previous action. [usually passive] undo somebody/something (formal) to make somebody/something fail.

To reverse or erase; annul: impossible to undo the suffering caused by the war. 2. To untie, disassemble, or loosen: undo a shoelace. 3. To open (a parcel, for example); unwrap. 4. a. To cause the ruin or downfall of; destroy. b. To throw into confusion; unsettle. To come open or unfastened. un·do′er n.

When we undo something, we cancel out its results, or reverse them. You might try to undo the damage caused by your little sister's baseball, offering to replace your neighbor's broken window. Formally, this verb also means "cause downfall or ruin," so you could say, "His love of power will undo him in the end."

To undo something that has been done means to reverse its effect. 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]

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. I undid the bottom two buttons of my yellow and gray shirt.

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. 2. To undo something that has been done means to reverse its effect.

undo something to open something that is fastened, tied or wrapped to undo a button/knot/zip, etc. to undo a jacket/shirt, etc. I undid the package and took out the books. opposite do somethingup. Want to learn more? undo something to cancel the effect of something He undid most of the good work of the previous manager.

Undo definition: reverse the effects of an action. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "undo the past", "undo the knot".

UNDO definition: 1. to open something that is tied or fastened: 2. to get rid of the effects of something that has…. Learn more.

"undo" is a correct and usable word in written English. It can be used as a verb meaning to cancel or reverse an action, or as a noun meaning a means of canceling or reversing an action. Example sentence: You can undo your last action by pressing the "undo" button.

To undo something that has been done means to reverse its effect. A heavy-handed approach from the police could undo that good impression. She knew it would be difficult to undo the damage that had been done.

UNDO meaning: 1 : to open or release (something) to unfasten or loosen (something); 2 : to change or stop the effect of (something) reverse

If you undo something, you loosen or untie it. She undid the buttons of her jacket.

undo meaning, definition, what is undo: to open something that is tied, fastened...: Learn more.

UNDO meaning: 1. to open something that is tied or fastened: 2. to get rid of the effects of something that has…. Learn more.