Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a necessity
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a necessity" is correct and usable in written English.
It is used to refer to something that is needed or essential. For example, "Getting a good night's sleep is a necessity for anyone who wants to stay healthy and productive."
✓ Grammatically correct
News & Media
Academia
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
"It's a necessity".
News & Media
JE: Why a necessity?
News & Media
"They're just a necessity".
News & Media
The caffeine was a necessity.
News & Media
Yet welfare is a necessity.
News & Media
But villains are a necessity.
News & Media
Contingency planning is a necessity.
News & Media
Offer a necessity product.
News & Media
Insulin is a necessity.
News & Media
They are a necessity".
News & Media
Now they're a necessity.
News & Media
Expert writing Tips
Best practice
When using "a necessity", ensure the context clearly defines what makes the subject indispensable. For example, instead of saying "Education is a necessity", specify: "A strong foundation in mathematics is a necessity for aspiring engineers".
Common error
Avoid using "a necessity" for items that are merely convenient or desirable. Reserve it for elements that are truly crucial or indispensable to avoid exaggeration and maintain credibility.
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a necessity" functions as a noun phrase, typically serving as a predicate nominative or an object complement. It identifies or describes something as being essential or indispensable, as supported by Ludwig's examples.
Frequent in
News & Media
50%
Academia
20%
Formal & Business
15%
Less common in
Encyclopedias
5%
Science
5%
Wiki
0%
Ludwig's WRAP-UP
In summary, "a necessity" is a common and grammatically sound phrase used to describe something indispensable. As verified by Ludwig, it effectively communicates that something is essential and not merely a luxury. Its frequent appearance in news, academic, and business contexts underscores its versatility and importance in various forms of communication. When using this phrase, ensure the context clearly explains why the subject is indispensable to avoid ambiguity or overstatement. Considering alternatives such as ""an essential requirement"" can add nuance to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
an essential requirement
Replaces "necessity" with "essential requirement", emphasizing the obligatory nature of something.
a crucial element
Substitutes "necessity" with "crucial element", highlighting the vital role something plays.
an indispensable asset
Replaces "necessity" with "indispensable asset", focusing on the irreplaceable value of something.
a vital need
Uses "vital need" instead of "necessity", stressing the importance of something for survival or success.
a mandatory aspect
Emphasizes the obligatory nature by using "mandatory aspect" instead of "necessity".
a key requisite
Replaces "necessity" with "key requisite", stressing the importance as a precondition.
a fundamental imperative
Highlights the urgency and foundational nature using "fundamental imperative" instead of "necessity".
an absolute must
Uses a more emphatic tone to stress the importance, making something an "absolute must".
something indispensable
Changes the structure to focus on the quality of being indispensable rather than a noun.
something essential
Replaces "necessity" with "essential", describing something as fundamentally important.
FAQs
How can I use "a necessity" in a sentence?
You can use "a necessity" to describe something indispensable. For example, "Access to clean water is "a necessity" for survival".
What can I say instead of "a necessity"?
Alternatives to "a necessity" include "an essential requirement", "a crucial element", or "an indispensable asset", depending on the specific context.
Is it correct to say "is necessity" instead of "is a necessity"?
No, it's generally not correct. You should use "is "a necessity"" when referring to something as being indispensable. Omitting the article "a" changes the meaning and is often grammatically incorrect.
What's the difference between "a necessity" and "a luxury"?
"A necessity" refers to something required or indispensable, while "a luxury" refers to something desirable but not essential. For example, food and water are "a necessity", while a sports car is often considered "a luxury".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested