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 popular subject
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a popular subject" is correct and usable in written English.
It can be used when referring to a topic that is widely discussed or of interest to many people. Example: "Climate change has become a popular subject in recent years, sparking debates and discussions across various platforms."
✓ Grammatically correct
News & Media
Academia
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
60 human-written examples
WATCH out when an academic press approaches a popular subject.
News & Media
HAARP became a popular subject of conspiracy theories.
Encyclopedias
War is a popular subject for shoot-'em-up video games.
News & Media
This is never a popular subject, and it's especially uncomfortable these days.
News & Media
The potential benefits of such integration are astounding, and have been a popular subject of speculation.
Academia
The Yankees' principal owner, George Steinbrenner, on the other hand, was a popular subject.
News & Media
Then, as now, cute animals were a popular subject for commercial cards.
News & Media
It's not that science, or some form of it, isn't a popular subject for publishers.
News & Media
A popular subject of conversation was the amazing Jordan, the Chicago Bulls' superstar.
News & Media
What do you think makes computer viruses a popular subject for science-fiction thrillers?
News & Media
Whistleblowing is a popular subject with Hollywood film-makers right now.
News & Media
Expert writing Tips
Best practice
When using "a popular subject", consider the specific nuance you want to convey. "Trending topic" implies recency, while "widely discussed" emphasizes breadth.
Common error
Avoid using "a popular subject" as a vague placeholder. Provide specific context to clarify why the subject is popular and who it is popular among. Use alternatives or rephrase for better clarity.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a popular subject" functions primarily as a noun phrase, often serving as the subject complement or object of a sentence. It identifies a topic that attracts widespread attention or interest. According to Ludwig, this expression is grammatically sound and widely applicable.
Frequent in
News & Media
50%
Academia
20%
Wiki
15%
Less common in
Science
10%
Formal & Business
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "a popular subject" is a versatile phrase used to denote a topic of widespread interest or frequent discussion. Ludwig AI confirms its grammatical correctness and broad applicability. While very common across varied contexts like News & Media and Academia, more specific language may be preferable in formal writing to enhance clarity and precision. Remember to consider the context and audience when employing this phrase to ensure the most effective communication. Other options are a trending topic, a widely discussed topic and a common theme.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a trending topic
Emphasizes the current popularity and rapid spread of a subject.
a widely discussed topic
Focuses on the breadth and extent of discussions surrounding the subject.
a common theme
Highlights the subject's recurring presence in various contexts.
a frequent subject of discussion
More explicitly states that the subject is often talked about.
a well-known issue
Stresses familiarity and recognition of the subject as a problem or concern.
a prevalent theme
Highlights the widespread occurrence of the subject.
a hot topic
Emphasizes the controversial or highly debated nature of the subject.
a major focus
Highlights the importance and central role of the subject.
an oft-debated issue
Focuses on the fact that the issue is frequently debated.
a recurring motif
Highlights the subject's reappearance in various contexts.
FAQs
How can I use "a popular subject" in a sentence?
You can use "a popular subject" to describe a topic that is frequently discussed or of interest to many people. For example, "Climate change is "a popular subject" in environmental science courses."
What can I say instead of "a popular subject"?
You can use alternatives like "a trending topic", "a widely discussed topic", or "a common theme" depending on the context.
Which is correct, "a popular subject" or "a popularly subject"?
"A popular subject" is correct. "Popular" is an adjective describing the noun "subject". "Popularly" is an adverb and would not be grammatically correct in this context.
What makes computer viruses "a popular subject" for science fiction thrillers?
Computer viruses offer inherent drama, fear of the unknown, and potential for widespread chaos, making them suitable narrative devices for exploring societal vulnerabilities and technological anxieties.
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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested