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[nuhl-uh-fahy] /ˈnʌl əˌfaɪ/
verb (used with object), nullified, nullifying.
to render or declare legally void or inoperative:
to nullify a contract.
to deprive (something) of value or effectiveness; make futile or of no consequence.
Origin of nullify
First recorded in 1585-95, nullify is from the Late Latin word nūllificāre to despise. See nulli-, -fy
Related forms
nullifier, noun
renullify, verb (used with object), renullified, renullifying.
unnullified, adjective
1, 2. invalidate, annul, void, cancel. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for nullify
Contemporary Examples
Historical Examples
  • The ray does more than nullify gravity—can be made to reverse gravity!

    Lords of the Stratosphere Arthur J. Burks
  • Nor did he try to gloss over or strive to nullify his own dishonorable actions.

    Garrison's Finish W. B. M. Ferguson
  • It was his duty to nullify this mutiny if he could, and therefore he turned to the men again.

    Turned Adrift Harry Collingwood
  • Nothing could nullify it, nothing could take it away; it was almost their belief in life.

    Sons and Lovers David Herbert Lawrence
  • Every means was taken to nullify the value of the "palladium of British liberty."

    The Big Bow Mystery I. Zangwill
British Dictionary definitions for nullify


verb (transitive) -fies, -fying, -fied
to render legally void or of no effect
to render ineffective or useless; cancel out
Derived Forms
nullification, noun
nullifier, noun
Word Origin
C16: from Late Latin nullificāre to despise, from Latin nullus of no account + facere to make
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for nullify

1590s, from Late Latin nullificare "to esteem lightly, despise," literally "to make nothing," from Latin nullus "not any" (see null) + root of facere "to make" (see factitious). Related: Nullified; nullifying.

Online Etymology Dictionary, © 2010 Douglas Harper
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