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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
such a subject
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "such a subject" is correct and usable in written English.
It can be used when referring to a specific topic or theme that has been previously mentioned or is understood in the context. Example: "In discussing the implications of climate change, such a subject requires careful consideration and analysis."
✓ Grammatically correct
News & Media
Academia
Science
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
57 human-written examples
Divorce, it seems to me, is such a subject.
Academia
To choose such a subject was audacious in the racial climate of the 1960s.
News & Media
On such a subject as this the opinion of a player is valuable.
News & Media
Such a subject emphasis for secondary teachers can be found in many countries.
Encyclopedias
And such a subject wouldn't have needed a genius to realize it decently, just a perceptive and inquisitive filmmaker.
News & Media
The Hepworth, to 12 Jun RC Large paintings of brickwork: there is something absurd about such a subject.
News & Media
"There is no end to such a subject as Pittsburgh, and no way to finish it," he said.
News & Media
Of course, two days were not enough to explore such a subject, and in Obrist's mind the exhibit never really ended.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
3 human-written examples
Such a study subject is called an "index subject".
In such a case, the subject could be rescheduled.
Science
Where did the idea for an in-depth study of such a broad subject begin?
News & Media
Expert writing Tips
Best practice
When using "such a subject", ensure the context clearly indicates what subject you are referring to, especially if it has been previously mentioned. This maintains clarity and avoids ambiguity.
Common error
Avoid using "such a subject" without clearly establishing the subject in the preceding sentences. This can lead to confusion and weaken the impact of your writing. Instead, directly state the subject or use a more specific reference.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "such a subject" functions as a determiner phrase used to refer to a topic or theme previously mentioned or understood within a given context. It indicates that the subject is already known and serves as a reference point in the discussion. As Ludwig confirms, the usage is grammatically correct.
Frequent in
News & Media
48%
Academia
26%
Science
15%
Less common in
Encyclopedias
4%
Wiki
2%
Formal & Business
1%
Ludwig's WRAP-UP
In summary, "such a subject" is a versatile phrase used to refer back to a previously mentioned topic, maintaining coherence and avoiding repetition. It is grammatically correct and widely used in various contexts, particularly in news, academic, and scientific writing. While generally neutral, its use should ensure clarity by making a direct reference to an existing subject. As indicated by Ludwig, using alternatives like "this subject" or "that subject" can also improve clarity. By avoiding ambiguous references and ensuring contextual clarity, writers can effectively use "such a subject" to enhance their communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
this subject
Replaces "such a" with "this", indicating a specific subject already under discussion.
that subject
Replaces "such a" with "that", pointing to a subject previously mentioned or understood.
a topic like this
Uses "topic" instead of "subject", broadening the reference slightly and emphasizing the nature of the discussion.
a matter like that
Replaces "subject" with "matter", shifting the focus to the importance or relevance of the issue.
a theme of that kind
Emphasizes the category or type of subject being discussed, using "theme" for a more abstract concept.
an area of this type
Refers to a general field or scope, using "area" to indicate a broader category.
a similar topic
Highlights the similarity to another topic, suggesting a comparison or connection.
the aforementioned subject
More formal replacement, emphasizing that the subject has already been mentioned.
the subject at hand
Focuses attention on the current topic being discussed or dealt with.
the question in consideration
Highlights the fact that the subject is under debate or deliberation, using 'question' to represent it.
FAQs
How can I use "such a subject" in a sentence?
Use "such a subject" to refer back to a topic that has already been introduced or is clear from the context. For example, "Given the complexities of climate change, "such a subject" requires interdisciplinary collaboration."
What are some alternatives to using "such a subject"?
Depending on the context, alternatives include "this subject", "that subject", "this topic", or "the aforementioned subject".
When is it appropriate to use "such a subject" in writing?
It is appropriate when the subject has been clearly defined in the preceding text and using "such a subject" avoids unnecessary repetition. Ensure the connection is unambiguous for the reader.
Is "such a subject" formal or informal?
"Such a subject" is generally neutral in tone and can be used in both formal and informal contexts, although more formal alternatives like "the aforementioned topic" might be preferred in very formal writing.
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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
4.5/5
Expert rating
Real-world application tested