Nullify

Nul'li·fy transitive verb [ imperfect & past participle Nullified ; present participle & verbal noun Nullifying .] [ Latin nullificare ; nullus none + -ficare (in comp.) to make. See Null ,
Found on http://www.encyclo.co.uk/webster/N/40

nullify

verb make ineffective by counterbalancing the effect of; `Her optimism neutralizes his gloom`; `This action will negate the effect of my efforts`
Found on http://wordnetweb.princeton.edu/perl/webwn?s=nullify

Nullify

• (a.) To make void; to render invalid; to deprive of legal force or efficacy. • (a.) To make void; to render invalid; to deprive of legal force or efficacy.
Found on http://thinkexist.com/dictionary/meaning/nullify/

nullify

declare invalid
Found on https://www.vocabulary.com/lists/249569

nullify

declare invalid
Found on https://www.vocabulary.com/lists/151404
No exact match found