Definitions of undo [ʌnˈdu]

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Definition of 'undo'

Random House Webster's College Dictionary

1. (v.t.) undo
to reverse the doing of.

2.  undo
to repair or erase:
to undo the damage.

3.  undo
to bring to ruin; destroy.

4.  undo
to unfasten or unlatch.

5.  undo
to untie.

Etymology: (bef. 900)

Definition of 'undo'

Princeton's WordNet

1. (verb) undo
cancel, annul, or reverse an action or its effect
"I wish I could undo my actions"

2. (verb) unmake, undo
deprive of certain characteristics

3. (verb) undo
cause the ruin or downfall of
"A single mistake undid the President and he had to resign"

4. (verb) untie, undo, loosen
cause to become loose
"undo the shoelace"; "untie the knot"; "loosen the necktie"

5. (verb) unwrap, undo
remove the outer cover or wrapping of
"Let's unwrap the gifts!"; "undo the parcel"

Definition of 'undo'

Kernerman English Learner’s Dictionary

1. (verb) undo
to unfasten sth
Undo your coat.

2. undo
to reverse the effects of sth
It took a long time to undo all his mistakes.

Definition of 'undo'

Webster Dictionary

1. (verb) undo
to reverse, as what has been done; to annul; to bring to naught

2. (verb) undo
to loose; to open; to take to piece; to unfasten; to untie; hence, to unravel; to solve; as, to undo a knot; to undo a puzzling question; to undo a riddle

3. (verb) undo
to bring to poverty; to impoverish; to ruin, as in reputation, morals, hopes, or the like; as, many are undone by unavoidable losses, but more undo themselves by vices and dissipation, or by indolence

Translation of 'undo'

Kernerman English Multilingual Dictionary

Sense: to unfasten or untie Could you undo the knot in this string?
Afrikaans: losmaak	Arabic: يَحُل، يَفُك	Bulgarian: развързвам
Brazilian: desfazer	Czech: rozvázat	German: aufmachen
Danish: løsne	Greek: λύνω, ξεκουμπώνω	Spanish: deshacer
Estonian: lahti tegema	Farsi: باز کردن؛ شکافتن	Finnish: avata
French: défaire	Hebrew: לְהַתִיר	Hindi: खोलना
Croatian: odvezati	Hungarian: kibont	Indonesian: membuka
Icelandic: losa um	Italian: disfare	Japanese: ほどく
Korean: 풀다	Lithuanian: išnarplioti, atrišti, ats	Latvian: attaisīt; atraisīt
Malay: membuka	Dutch: losmaken	Norwegian: knappe opp,åpne, ta opp
Polish: rozwiązać	Persian: باز کردن؛ شکافتن	Pashto: خلاصول، بيرته كول، پرانيس
Portuguese: desfazer	Romanian: a desface	Russian: развязывать
Slovak: rozviazať	Slovenian: odvezati, odpeti	Serbian: odvezati
Swedish: knyta (knäppa) upp, lossa	Thai: เปิด; ปลด	Turkish: çözmek, açmak
Taiwanese: 鬆開，解開	Ukrainian: розв'язувати; розстібати	Urdu: کھولنا
Vietnamese: tháo, gỡ, cởi	Chinese: 松开，解开
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