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Meaning of NULLIFY

Pronunciation:  'nulu`fI

WordNet Dictionary
 
 Definition: 
  1. [v]  make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"
  2. [v]  show to be invalid
  3. [v]  declare invalid; "The contract was annulled"; "avoid a plea"
 
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 Synonyms: annul, avoid, invalidate, invalidate, negate, neutralise, neutralize, quash, void
 
 Antonyms: formalise, formalize, validate, validate
 
 See Also: break, cancel, contradict, negate, stet, strike down, weaken

 

 

Webster's 1913 Dictionary
 
 Definition: 
\Nul"li*fy\, v. t. [imp. & p. p. {Nullified}; p. pr. &
vb. n. {Nullifying}.] [L. nullificare; nullus none + -ficare
(in comp.) to make. See {Null}, a., and {-fy}.]
To make void; to render invalid; to deprive of legal force or
efficacy.
      Such correspondence would at once nullify the
      conditions of the probationary system.   --I. Taylor.
Syn: To abrogate; revoke; annul; repeal; invalidate; cancel.
     See {Abolish}.
 
Thesaurus Terms
 
 Related Terms: abate, abjure, abolish, abrogate, absolve, annihilate, annul, assert the contrary, belie, bring to naught, bring to nothing, buffer, cancel, cancel out, come to nothing, compensate, confine, contest, contradict, contravene, controvert, counter, counteract, counterbalance, countermand, counterorder, countervail, cross, declare a moratorium, deny, disaffirm, disallow, disannul, disavow, disclaim, disown, disprove, dispute, do away with, forswear, frustrate, gainsay, impugn, invalidate, join issue upon, limit, make void, negate, negativate, negative, neutralize, not accept, not admit, obliterate, offset, oppose, override, overrule, quash, recall, recant, refuse to admit, refute, renege, renounce, repeal, repudiate, rescind, restrict, retract, reverse, revoke, set aside, stultify, suspend, take back, take issue with, thwart, undo, vacate, vitiate, void, waive, wipe out, withdraw, write off
 

 

 

 

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