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1. Dictionary

   undo

   /ʌnˈduː/

   verb

   • 1. unfasten, untie, or loosen (something): "the knot was difficult to undo" Similar unfastenunbuttonunhookuntieunlaceunbindunfetterunshackleunmanacleunbridleunlockunboltuncoupleunhitchunlinkunclickloosenloosedisentangledisentwineextricatereleasedetachfreeset freeliberateopenunsealunwraplet outdisconnectdisjoindisengagedisuniteseparateOpposite fastendo up
   • 2. cancel or reverse the effects or results of (a previous action or measure): "there wasn't any way Evelyn could undo the damage" Similar revokeoverruleoverturnrepealrescindreverseretracttake backrule againstdisallowvetocountermandcancelannulnullifyrender null and voidinvalidaterender invalidnegateabrogatedisestablishmake ineffectiveset asidedo away withwipe outbring to an endavoidvacatearchaic:recallrare:disannulOpposite ratify
   • ▪ cancel (the last command executed by a computer): "you can frequently undo the error if you notice it in time"
   • 3. cause the downfall or ruin of: formal "Iago's hatred of women undoes him" Similar ruinundermineput an end toput at risksubvertoverturntopplescupperscotchsabotagespoilmess upmake a mess ofquashsquelchcrushharmcrippleimpairmardestroydevastateplay havoc withwrecksmashshatterannihilateeradicateobliteratedefeatcancel outneutralizerender ineffectivethwartupsetfoilfrustratehamperhinderobstructinformal:botchblowput the kibosh onfoul upmuck uplouse upblow a hole indo forcock upthrow a spanner in the works ofrain on someone's paradethrow a monkey wrench in the works ofvulgar slang:fuck upbugger upballs uparchaic:bring to naughtOpposite furtherenhancehelp

   noun

   • 1. a feature of a computer program that allows a user to cancel or reverse the last command executed: "the undo command"

   Word Origin Old Englishundōn (see un-2, do1).

   Scrabble Points: 5

   • U

     1

   • N

     1

   • D

     2

   • O

     1

   Powered by Oxford Dictionaries

   More definitions, origin and scrabble points

2. dictionary.cambridge.org › dictionary › englishUNDO | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   Undo means to unfasten something or to remove the effects of something. Learn how to use undo in different contexts with sentences from the Cambridge English Corpus and other sources.

   • English (US)

     UNDO meaning: 1. to unfasten something that is fastened or...

   • Znaczenie Undo, Definicja W Cambridge English Dictionary

     undo definicja: 1. to unfasten something that is fastened or...

   • Undo: Russian Translation

     UNDO translate: расстегивать, развязывать , уничтожать...

   • Undo: Polish Translation

     UNDO translate: rozpinać, rozwiązywać, naprawiać, odwracać,...

   • Undo: Catalan Translation

     undo translate: deslligar, descordar. Learn more in the...

   • Undo: Malay Translation

     UNDO translate: membuka, menarik balik. Learn more in the...

   • Undo: Japanese Translation

     UNDO translate: （衣服）を脱ぐ, （ボタンやベルト）をはずす, , はずす, もとどおりにする....

   • Undo: Italian Translation

     undo translate: sbottonare, slacciare, slegare, disfare,...

3. www.merriam-webster.com › dictionary › undoUndo Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › undo

   • Cached

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

4. www.dictionary.com › browse › undoUNDO Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › undo

   • Cached

   Undo means to reverse the doing of something or to cause it to be as if never done. Learn more about its origin, usage, and related words from Dictionary.com.

5. dictionary.cambridge.org › us › dictionaryUNDO | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   Learn the meaning of undo as a verb in English, with examples of how to use it in sentences. Find out how to say undo in different languages, such as Chinese, Spanish and Portuguese.

6. www.collinsdictionary.com › dictionary › englishUNDO definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   Learn the meaning, pronunciation, and usage of the verb undo, which can mean to loosen, reverse, or ruin something. See examples, synonyms, and related words for undo.

7. www.oxfordlearnersdictionaries.com › definition › englishundo verb - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

   • Cached

   Learn the meaning, pronunciation and grammar of the verb undo, which can mean to open, cancel or make fail something. See examples, synonyms and related topics in the Oxford Advanced Learner's Dictionary.

8. www.thefreedictionary.com › undoUndo - definition of undo by The Free Dictionary

   www.thefreedictionary.com › undo

   • Cached

   Undo means to reverse, erase, or annul something, or to untie, unwrap, or open something. Learn the different meanings, synonyms, and examples of undo from various dictionaries and sources.