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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
in a certain subject
Grammar usage guide and real-world examplesUSAGE SUMMARY
You can use the phrase "in a certain subject" in written English.
For example: "She specializes in a certain subject within psychology, namely cognitive behavior therapy."
✓ Grammatically correct
News & Media
Science
Wiki
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
26 human-written examples
Do not however, assume that your existing undergraduate programme in a certain subject is desirable in China.
News & Media
Under Labour there would be new career routes for teachers allowing them to specialise in a certain subject or in teaching skills, and more chances for professional development.
News & Media
Students who are struggling in a certain subject or need extra help to pass a Regents test are increasingly sacrificing their lunch periods.
News & Media
Or what about the researcher who has managed to produce only one item during that time, the definitive book in a certain subject, which may prove to be the point of reference for many years to come?
News & Media
My correspondent said that "many of the students who come to Lancaster and aim to major in a certain subject in year one, will change their intended major in year two.
News & Media
that assesses whether and what their peers have learned Remind students that the purpose of the class activity is not to teach the technology itself (although a brief orientation may be a necessary component), but to demonstrate how the technology can be used to enhance learning in a certain subject.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
34 human-written examples
The amount of time spent in educating a certain subject is a reflection of the portion of the NMLE questions on that particular subject.
The study proposes an innovative methodology for the clothing design activity, which allows the designer to adapt basic patterns developed for type bodies in the actual body form of a certain subject, using simulation in virtual environment of body-garment fitting.
Science
For example, if you train to teach a certain subject in which there is a teacher shortage – such as modern languages or science – you may be entitled to a bursary which does not have to be paid back.
News & Media
Just like Wikipedia, Navify appeals to a very broad target audience, but it looks like just the right online source for people like bloggers, journalists, scientists, students etc. who need to have various kinds of information and data related to a certain subject in one single place.
News & Media
If you're passionate about your studies or a certain subject in school, don't be afraid to say so.
Wiki
Expert writing Tips
Best practice
When using the phrase "in a certain subject", ensure that the context clearly indicates the area of study or topic being referred to. Providing specific examples or further details can enhance clarity.
Common error
Avoid using "in a certain subject" without providing sufficient context. The lack of specific information can leave the reader confused about the intended subject area. Add clarifying details or examples to provide additional context and avoid generalization.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in a certain subject" functions as a prepositional phrase that modifies a noun or verb, specifying the area, topic, or discipline being referred to. As Ludwig AI suggests, it is indeed a valid phrase to use in written English.
Frequent in
News & Media
36%
Wiki
32%
Science
32%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "in a certain subject" is a versatile prepositional phrase used to generally indicate an area of focus or expertise. As Ludwig AI confirms, it is a grammatically correct phrase often employed across diverse contexts, including news, science, and general writing. While versatile, clarity is key. When using this phrase, provide adequate context to avoid ambiguity. Consider alternatives like "within a specific discipline" or "in a particular field of study" for more formal tones.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
In a specified subject
Replaces "certain" with "specified", implying a more concrete selection.
In a particular field of study
Substitutes "subject" with "field of study", providing a slightly broader scope.
In a designated subject area
Adds "designated" to emphasize the formal categorization of the subject.
Within a specific discipline
Replaces "certain subject" with a more formal term, "discipline", suggesting a structured field of study.
In a selected area of expertise
Highlights the expertise aspect, suitable when discussing professional skills.
With respect to a defined topic
Employs "with respect to" for a more formal and precise tone.
Regarding a given topic
Focuses on the "topic" aspect, suitable when the context isn't strictly academic.
Concerning a determined theme
Theme is used instead of subject, when the discourse refers to art or narrative.
Relating to a certain domain
Replaces "subject" with "domain", appropriate when referring to a sphere of knowledge.
Concerning a specific area
Uses "area" as a more general substitute for "subject", useful for non-academic contexts.
FAQs
How can I use "in a certain subject" in a sentence?
You can use "in a certain subject" to specify an area of study or expertise. For example, "Her expertise lies in a certain subject within the realm of astrophysics".
What's a more formal alternative to "in a certain subject"?
For a more formal tone, consider using phrases like "within a specific discipline" or "in a particular field of study".
Is "in a certain subject" appropriate for academic writing?
Yes, "in a certain subject" is appropriate, but ensure you provide enough context to avoid ambiguity. More specific phrasing might be preferred for higher-level academic discourse.
How does "in a certain subject" differ from "regarding a given topic"?
"In a certain subject" often implies a more structured or academic area of study, while "regarding a given topic" can refer to any subject matter, whether academic or not.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested