null

adjective
\ ˈnəl How to pronounce null (audio) \

Definition of null

 (Entry 1 of 3)

1 : having no legal or binding force : invalid a null contract
2 : amounting to nothing : nil the null uselessness of the wireless transmitter that lacks a receiving station— Fred Majdalany
3 : having no value : insignificant … news as null as nothing …— Emily Dickinson
4a : having no elements (see element sense b(3)) null set
b : having zero as a limit null sequence
c of a matrix : having all elements equal to zero
5a : indicating usually by a zero reading on a scale when a given quantity (such as current or voltage) is zero or when two quantities are equal used of an instrument
b : being or relating to a method of measurement in which an unknown quantity (as of electric current) is compared with a known quantity of the same kind and found equal by a null detector
6 : of, being, or relating to zero The meter gave a null reading.

null

noun

Definition of null (Entry 2 of 3)

2a : a condition of a radio receiver when minimum or zero signal is received
b : a minimum or zero value of an electric current or of a radio signal

null

verb
nulled; nulling; nulls

Definition of null (Entry 3 of 3)

transitive verb

: to make null

Did you know?

English borrowed null from the Anglo-French nul, meaning "not any." That word, in turn, traces to the Latin word nullus, from ne-, meaning "not," and ullus, meaning "any." Null often pops up in legal and scientific contexts. It was originally used in Scottish law and still carries the meaning "having no legal or binding force." In mathematics, it is sometimes used to mean "containing nothing"; for example, the set of all whole numbers that are divisible by zero is the "null set" (that is, there are no numbers that fit that description). But null also has some more general uses. We often use it with the meaning "lacking meaning or value," as in "By the time I heard it, the news was null."

Examples of null in a Sentence

Adjective the contract was null because one party forgot to sign it that information is as null as no information at all Verb asked the state court to null the election results because of widespread voting irregularities
Recent Examples on the Web: Adjective However, when hiring flexible talent, the paperwork, interview slots and onboarding are essentially null as they are considered experts in their field and don’t require the typical formalities that FTEs do. Yec, Forbes, 30 Aug. 2021 Now a growing number of particle physicists think naturalness problems and the null results at the Large Hadron Collider might be tied to reductionism’s breakdown. Quanta Magazine, 1 Mar. 2022 With the pandemic continuing to disrupt education, Rep. Bob Behning, R-Indianapolis, said the Indiana Department of Education requested the legislature allow for another null grade. Kaitlin Lange, The Indianapolis Star, 10 Jan. 2022 With the pandemic continuing to disrupt education, Rep. Bob Behning, R-Indianapolis, said the Indiana Department of Education requested the legislature allow for another null grade. Kaitlin Lange, The Indianapolis Star, 10 Jan. 2022 With the pandemic continuing to disrupt education, Rep. Bob Behning, R-Indianapolis, said the Indiana Department of Education requested the legislature allow for another null grade. Kaitlin Lange, The Indianapolis Star, 10 Jan. 2022 With the pandemic continuing to disrupt education, Rep. Bob Behning, R-Indianapolis, said the Indiana Department of Education requested the legislature allow for another null grade. Kaitlin Lange, The Indianapolis Star, 10 Jan. 2022 That evidence was a whiff of radioactive carbon wafting from Martian soil, hinting at microbial metabolism taking place within—but three other life-detection experiments each lander carried only found null results. Natalie Elliot, Scientific American, 23 Nov. 2021 With the pandemic continuing to disrupt education, Rep. Bob Behning, R-Indianapolis, said the Indiana Department of Education requested the legislature allow for another null grade. Kaitlin Lange, The Indianapolis Star, 10 Jan. 2022 Recent Examples on the Web: Noun In another measure of political disillusionment, more than three million people cast blank or null-and-void ballots — and that does not include the 13.7 million who opted not to vote at all. New York Times, 26 Apr. 2022 Since then, Summer has interacted with the Duttons a number of times, but hints at a burgeoning relationship were pretty much null. Rebecca Norris, Country Living, 13 Mar. 2022 Doing side lying leg raises incorrectly will miss your Gluteus Medius and further strengthen an already strong TFL which does not help prevent pelvic drop, making your time invested into doing the side lying leg lift exercise null. Jon-erik Kawamoto, Outside Online, 26 Mar. 2020 Language is about words, but also about context and structure, and sometimes those things render specificity null. New York Times, 11 Nov. 2021 The concept of a null set is extremely useful in mathematics. Martin Goldstern, Scientific American, 16 Aug. 2021 Some undecided voters, like Sao Paulo resident Mauricio Soares, are choosing to vote null or blank. Juliana Koch, Philip Wang And Rodrigo Pedroso, CNN, 5 Aug. 2021 Just a few years after it was proposed, critical tests were performed, confirming the predictions of Einstein’s theory as matching our Universe and rejecting the null (Newtonian) hypothesis. Ethan Siegel, Forbes, 3 Mar. 2021 Immediately after the election, Maduro ordered its supreme court to declare null all proposals that came from the national assembly. Jorge Jraissati, National Review, 2 Dec. 2020 Recent Examples on the Web: Verb Ricart understood the changing dynamics in college football and was careful to include a contingency that would null the truck’s lease should Ewers transfer. Laine Higgins, WSJ, 9 Dec. 2021 China will likely avoid gross and blatant expropriation but will change regulation either to dilute ownership, reclassify ownership, or null out bond and stock values for heavily indebted companies. Anne Stevenson-yang, Forbes, 1 Sep. 2021 Miley threw 51/3 perfect innings, nulled three runners in the seventh and tried to complete a shutout in the ninth. Hunter Atkins, Houston Chronicle, 24 July 2019 The sats surge their signal strength to overwhelm any noise from an enemy trying to jam them, while nulling antennas pinpoint the attack and dampen the signal with counter-noise. Joe Pappalardo, Popular Mechanics, 15 Feb. 2018 Come kickoff Saturday night, any previous patterns and statistics for Futbol Club Cincinnati are nulled. Charlie Hatch, Cincinnati.com, 21 Oct. 2017 However, the shock lead was nulled three minutes before the break, as Cristiano Ronaldo levelled things up from 12-yards-out, punishing the 24-year-old Lilywhites right-back's decision to bring down Toni Kroos inside the area. SI.com, 18 Oct. 2017 Don’t worry that cooking with it will null the point: The heat is not so high as to damage the principal flavors. Emily Horton, charlotteobserver, 29 Aug. 2017 Don’t worry that cooking with it will null the point: The heat is not so high as to damage the principal flavors. Emily Horton, sacbee, 29 Aug. 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'null.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of null

Adjective

1542, in the meaning defined at sense 1

Noun

1605, in the meaning defined at sense 1

Verb

1556, in the meaning defined above

History and Etymology for null

Adjective, Noun, and Verb

Anglo-French nul, literally, not any, from Latin nullus, from ne- not + ullus any; akin to Latin unus one — more at no, one

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Dictionary Entries Near null

nul

null

nulla

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Statistics for null

Last Updated

10 May 2022

Cite this Entry

“Null.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/null. Accessed 18 May. 2022.

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More Definitions for null

null

adjective
\ ˈnəl How to pronounce null (audio) \

Kids Definition of null

: having no legal force : not binding The law was declared null and void.

null

adjective
\ ˈnəl How to pronounce null (audio) \

Legal Definition of null

: having no legal or binding force : void a null contract

History and Etymology for null

Anglo-French nul, literally, not any, from Latin nullus, from ne- not + ullus any

More from Merriam-Webster on null

Nglish: Translation of null for Spanish Speakers

Britannica English: Translation of null for Arabic Speakers

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