Nul·li·fy v. t. [imp. & p. p. Nullified p. pr. & vb. n. Nullifying ] 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.
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