Scrabble Dictionary

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Undo

ʌnˈduː

Undo definitions

verb

Inflections:

undoes undoing undid undone undo

unfasten, untie, or loosen (something)

"the knot was difficult to undo"

Synonyms:
unfasten unbutton unhook untie unlace
cancel or reverse the effects or results of (a previous action or measure)

"there wasn't any way Evelyn could undo the damage"

Synonyms:
revoke overrule overturn repeal rescind reverse retract take back rule against disallow veto countermand cancel annul nullify render null and void invalidate render invalid negate abrogate disestablish make ineffective set aside do away with wipe out bring to an end
- cancel (the last command executed by a computer)
  
  "you can frequently undo the error if you notice it in time"
cause the downfall or ruin of

"Iago's hatred of women undoes him"

Synonyms:
ruin undermine put an end to put at risk subvert overturn topple scupper scotch sabotage spoil mess up make a mess of quash squelch crush harm cripple impair mar destroy devastate play havoc with wreck smash shatter annihilate eradicate obliterate defeat

noun

Inflections:

undo undos

a feature of a computer program that allows a user to cancel or reverse the last command executed

"the undo command"