'Nullify' definitions:

Definition of 'nullify'

(from WordNet)
verb
Declare invalid; "The contract was annulled"; "void a plea" [syn: invalidate, annul, quash, void, avoid, nullify] [ant: formalise, formalize, validate]
verb
Show to be invalid [syn: invalidate, nullify] [ant: validate]
verb
Make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts" [syn: neutralize, neutralise, nullify, negate]

Definition of 'Nullify'

From: GCIDE
  • Nullify \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. [1913 Webster]
  • Such correspondence would at once nullify the conditions of the probationary system. --I. Taylor. [1913 Webster]
  • Syn: To abrogate; revoke; annul; repeal; invalidate; cancel. See Abolish. [1913 Webster]

Words containing 'Nullify'