nullify : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: nullify	by the DICT Development Group
2 results for nullify
From WordNet (r) 3.0 (2006) [wn]:
nullify v declare invalid; "The contract was annulled"; "void a plea" Synonym(s): invalidate, annul, quash, void, avoid, nullify Antonym(s): formalise, formalize, validate show to be invalid Synonym(s): invalidate, nullify Antonym(s): validate make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts" Synonym(s): neutralize, neutralise, nullify, negate
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Nullify \Nul"lify\, 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}.