- without value, effect, consequence, or significance.
- being or amounting to nothing; nil; lacking; nonexistent.
- Mathematics. (of a set)
- of measure zero.
- being or amounting to zero.
- Electronics. a point of minimum signal reception, as on a radio direction finder or other electronic meter.
- to cancel; make null.
- null and void, without legal force or effect; not valid: This contract is null and void.
Origin of null
1555–65; < Latin nūllus, equivalent to n(e) not + ūllus any
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for null
Because all of the Rescued Film Project images are scanned to digital, the necessity of a darkroom is null.These Photographs Would Die Without Him
July 31, 2014
Journals aren't interested in null results or "yup, we replicated that other study"; they want new studies with new findings.Searching for Fraud
October 9, 2012
Blacks are saying that the old contract with America is null and void.America's New Racial Reality
September 18, 2009
As this marriage was null and void, there was no Marchioness of Morella.Fair Margaret
H. Rider Haggard
It all came to nothing: as poetry it never began to be more than null.From a Cornish Window
Arthur Thomas Quiller-Couch
If one of these three conditions is wanting, the ballot is null.Napoleon the Little
If they do not proclaim him, my abdication must be null, and not made.Memoirs of the Private Life, Return, and Reign of Napoleon in 1815, Vol. II
Fleury de Chaboulon.
The changes of the Protectorate were treated as null and void.History of the English People
John Richard Green
- without legal force; invalid; (esp in the phrase null and void)
- without value or consequence; useless
- lacking distinction; characterlessa null expression
- nonexistent; amounting to nothing
- quantitatively zero
- relating to zero
- (of a set) having no members
- (of a sequence) having zero as a limit
- physics involving measurement in which an instrument has a zero reading, as with a Wheatstone bridge
C16: from Latin nullus none, from ne not + ullus any
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
Word Origin and History for null
Online Etymology Dictionary, © 2010 Douglas Harper
- Of or relating to a set having no members or to zero magnitude.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.