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
essential subject
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "essential subject" is correct and usable in written English.
You can use it when you want to emphasize a particular subject or topic as being especially important. For example, "The essential subject of our discussion today is the cost of healthcare in the United States."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
28 human-written examples
It is parenthood that is Moss's essential subject.
News & Media
... Kitchen hands are turned into sculptors, painters, decorators, the essential subject being unrecognisably disguised.
News & Media
Title XII covers several agencies but its essential subject is transportation policy.
News & Media
The most potent aspect of intellectual archeology that Subrin captures is Firestone's essential subject: the resistance of the body.
News & Media
It tackles an essential subject in the age of technocracy — the limits of technocratic thinking as a basis for policy.
News & Media
As well as cementing his reputation as a writer of Wales, it sowed the seed of what would become his other essential subject.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
30 human-written examples
As much as Robinson decries them, this is the clarifying force of comparisons such as the Pisa tables: they show how young people in Poland and Germany, let alone Shanghai and Singapore, are more advanced in many essential subjects and skills.
News & Media
He said: "Apprenticeships must involve meaningful on-the-job training, as well as English and maths for young people who haven't yet achieved good GCSEs in these essential subjects.
News & Media
This clearsightedness — combined with her subtle narrative sleights of hand and her willingness to broach essential subjects like the fate of would-be migrants to the rich North — gives her fiction a rare integrity that shines through the sinuous prose.
News & Media
Algebra and geometry are two essential subjects of mathematics and therefore relations between these subjects have been investigated since Euclides of Alexandra B.C. 325.
A good curriculum should give pupils a core knowledge of essential subjects, instil a love of learning and teach them how to discover more on a subject, but also shape them into a well-rounded person.
News & Media
Expert writing Tips
Best practice
Use "essential subject" to clearly indicate that a topic is of utmost importance and requires careful attention. For instance, when discussing academic curricula, specify which subjects are "essential" for a well-rounded education.
Common error
Avoid using "essential subject" in casual conversation or informal writing. It can sound overly formal or pretentious in situations where simpler language would suffice.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "essential subject" primarily functions as a noun phrase, where "essential" modifies the noun "subject". According to Ludwig AI, this phrase is grammatically correct and emphasizes the importance of the subject matter. Many examples are from the News & Media source.
Frequent in
News & Media
44%
Science
37%
Encyclopedias
6%
Less common in
Wiki
3%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "essential subject" is a grammatically correct and commonly used term to emphasize the importance of a specific topic or area of study. Ludwig AI confirms its validity and usefulness in written English. As demonstrated by examples, it frequently appears in news, science, and encyclopedia contexts. When using "essential subject", remember to maintain a formal tone and reserve it for situations where highlighting the critical nature of the subject is necessary. Consider using synonyms like "key topic" or "core subject matter" for variety. Avoid overuse in informal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
key topic
Focuses on the topic as being a central point.
core subject matter
Highlights the foundational aspect of the subject.
fundamental theme
Emphasizes the underlying and crucial nature of the theme.
critical area
Stresses the importance of the area in question.
vital topic
Indicates the topic is indispensable and necessary.
primary focus
Points to the main area of attention.
main concern
Highlights the major issue or worry.
central theme
Focuses on the theme as being the most important.
basic theme
Highlights the foundational aspect of the theme.
significant matter
Stresses the importance of the matter in question.
FAQs
How can I effectively use "essential subject" in a sentence?
Use "essential subject" to highlight the core topic or area of focus. For example, "Understanding climate change is an "essential subject" for future generations".
What are some alternatives to "essential subject"?
You can use alternatives like "key topic", "core subject matter", or "fundamental theme" depending on the context.
Is "essential subject" formal or informal?
"Essential subject" tends to be more formal. In informal contexts, simpler phrases like "main topic" or "key issue" might be more appropriate.
What makes a subject "essential"?
A subject is "essential" when it's fundamental, necessary, or crucial for understanding a broader topic or achieving a specific goal. It's something that cannot be ignored or overlooked.
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested