null
/nŭl/
adjective
  1. Having no legal force; invalid.
    render a contract null and void.
  2. Of no consequence, effect, or value; insignificant.
  3. Amounting to nothing; absent or nonexistent.
    a null result.
from The American Heritage® Dictionary of the English Language, 5th Edition. More at Wordnik
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Merriam-Webster
merriam-webster.com › dictionary › null
NULL Definition & Meaning - Merriam-Webster
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," especially in the phrase "null and void."
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Urban Dictionary
urbandictionary.com › define.php
Urban Dictionary: null
January 11, 2021 - Unfortunately nobody can be told what the NULL is… NULL is the value that we can not define. This is special value used in db that is given to the field when no value was assigned. In practical life we can consider it as no value.
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Slang.org
slang.org › null-meaning-definition
Null Meaning
JavaScript is disabled in your browser · Please enable JavaScript to proceed · A required part of this site couldn’t load. This may be due to a browser extension, network issues, or browser settings. Please check your connection, disable any ad blockers, or try using a different browser
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Wiktionary
en.wiktionary.org › wiki › null
null - Wiktionary, the free dictionary
To form nulls, or into nulls, as in a lathe. (computing, slang, transitive) To crack; to remove restrictions or limitations in (software).
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Vocabulary.com
vocabulary.com › dictionary › null
Null - Definition, Meaning & Synonyms | Vocabulary.com
Null means having no value; in other words null is zero, like if you put so little sugar in your coffee that it’s practically null. Null also means invalid, or having no binding force.
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Dictionary.com
dictionary.com › browse › null
NULL Definition & Meaning | Dictionary.com
NULL definition: without value, effect, consequence, or significance. See examples of null used in a sentence.
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Urban Thesaurus
urbanthesaurus.org › synonyms › null
Slang for null (Related Terms) - Urban Thesaurus
Hopefully the related words and synonyms for "null" are a little tamer than average. The Urban Thesaurus was created by indexing millions of different slang terms which are defined on sites like Urban Dictionary. These indexes are then used to find usage correlations between slang terms. The official Urban Dictionary API is used to show the hover-definitions...
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Reddit
reddit.com › r/discordapp › what does “null” mean and why is it here
r/discordapp on Reddit: What does “null” mean and why is it here
March 21, 2023 - AKA, null literally means it is trying to find a variable that does not exist. But what if you do want a variable, but nothing inside it? Well, make it be undefined! Two ways to do this in JavaScript.
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FluentSlang
fluentslang.com › what-does-null-mean-in-slang
What Does Null Mean In Slang & How To Use It - FluentSlang
January 18, 2023 - In texting, chat, TikTok, or Snapchat, “null” can mean “an unresponsive situation without any results.” It is often used to indicate that a message or action has not been received or has not produced the desired outcome.
Find elsewhere
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Online Slang Dictionary
onlineslangdictionary.com › meaning-definition-of › null
What does null mean? null Definition. Meaning of null. OnlineSlangDictionary.com
This Slang page is designed to explain what the meaning of null is. The slang word / phrase / acronym null means... . Online Slang Dictionary. A list of slang words and phrases, idioms, jargon, acronyms, and abbreviations.
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TikTok
tiktok.com › discover › what-does-the-slang-null-mesn-slang
What Does The Slang Null Mesn Slang | TikTok
December 8, 2025 - Explore how null represents empty spaces in programming with real-world examples. @khalidwarsa #programming #tech #selftaughtdev #flutter #typescript #dart. null programming concept, what is null, null programming, what does null mean, null case, null meaning, null in programming, null definition, null programming language, null concept
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Urban Dictionary
urbandictionary.com › define.php
NULL
In verb form, it refers to ordering every radiologic and lab test imaginable to diagnose a confounding (or at some institutions, not-so-confounding) illness. In noun form (also known as cheech-bomb), it refers to the panoply of tests itself.
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Collins Dictionary
collinsdictionary.com › us › dictionary › english › null
NULL definition in American English | Collins English Dictionary
6 senses: 1. without legal force; invalid; (esp in the phrase null and void) 2. without value or consequence; useless 3..... Click for more definitions.
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Thesaurus.com
thesaurus.com › browse › null
NULL Synonyms & Antonyms - 38 words | Thesaurus.com
absent characterless inefficacious nonexistent null and void powerless unavailing unsanctioned useless vain
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Mymeaniing
mymeaniing.com › what-does-null-mean
What Does Null Mean? Explained Simply
January 27, 2026 - For example, if someone asks, “What did you think of the movie?” and you reply “null,” you might be implying you didn’t care, didn’t watch it, or have nothing to add. While the original term comes from tech, its casual use in messaging has grown among teens, gamers, and online communities who enjoy dropping geeky or ironic slang.
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Etymonline
etymonline.com › word › null
Null - Etymology, Origin & Meaning
slang for "nothing," 1933 (Hemingway), from Spanish nada "nothing," from Latin (res) nata "small, insignificant thing," literally "(thing) born," from natus, past participle of nasci "to be born" (Old Latin gnasci), from PIE root *gene- "give birth, beget." First in Hemingway's "
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OneLook
onelook.com
NULL meaning: Absence of data or value - OneLook
▸ verb: To return to the null position, setting, etc. ▸ verb: To form nulls, or into nulls, as in a lathe. ▸ verb: (computing, slang, transitive) To crack; to remove restrictions or limitations in (software).