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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
a principal concern
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a principal concern" is correct and usable in written English.
It can be used when discussing the most important issue or matter in a particular context. Example: "The environmental impact of the project is a principal concern for the stakeholders involved."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(18)
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
30 human-written examples
Preventing these attacks has been a principal concern of transplant science.
News & Media
Mr. Karzai said militias outside of government control remained a principal concern as the government tried to extend its authority.
News & Media
By many accounts, the show's pace has been a principal concern, and an area of major improvement.
News & Media
Benevolence and the relief of distress were always a principal concern of the old guilds, and the livery companies of today continue this tradition.
Encyclopedias
In recent decades, however, a principal concern of the Met's directors has been encouraging more visitors to come to the museum, and to make return visits.
News & Media
(Part of its program was inherited from a League of Nations organization called the International Institute of Intellectual Cooperation, a principal concern of which was libraries).
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
29 human-written examples
The initial international activity in navigation also distinguishes air transport: finding a way to a destination was an area of principal concern in the early years of aviation.
Encyclopedias
His Machiavelli is the ultimate patriot, a man whose principal concern was the freedom of his beloved Florence.
News & Media
He says that, although a possible wrongful conviction is always a serious matter, his principal concern in this case is the possibility that it "may have left a dangerous offender at large and free to kill again".
News & Media
He acknowledged a major catch: "My principal concern at this stage of the campaign is that the stability, reconstruction, and political rehabilitation will lag behind the military campaign".
News & Media
If one regarded the manifold issues of computerized democracy in a reductionist way, perhaps the principal concern would be whether, in a close election, the Presidency can be stolen by means of computer vote fraud in several major jurisdictions.
News & Media
Expert writing Tips
Best practice
When using "a principal concern", ensure the context clearly establishes whose concern it is. For example, specify "a principal concern of the residents" or "a principal concern of the company".
Common error
While grammatically correct, "a principal concern" can sound overly formal in casual conversation. Consider using phrases like "main worry" or "biggest issue" in informal settings.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a principal concern" functions as a noun phrase, typically serving as a subject complement or object in a sentence. It identifies a key issue or worry within a specific context. Ludwig's examples demonstrate its use in highlighting the primary focus of attention.
Frequent in
News & Media
35%
Science
35%
Encyclopedias
10%
Less common in
Wiki
5%
Formal & Business
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "a principal concern" is a noun phrase used to emphasize the importance of a particular issue or worry. Ludwig's analysis confirms that it is grammatically correct and commonly used, particularly in news, scientific, and encyclopedia contexts. While versatile, it leans toward a neutral to formal register. When writing, ensure the context clearly establishes whose concern it is and avoid overuse in casual conversation. Consider alternatives like "major concern" or "key issue" for informal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a major worry
Replaces 'concern' with 'worry', emphasizing the element of anxiety.
a primary consideration
Substitutes 'concern' with 'consideration', focusing on importance in decision-making.
a key issue
Uses 'issue' instead of 'concern', highlighting a point of debate or problem.
a central problem
Emphasizes that the concern is a core problem.
a foremost anxiety
Replaces 'principal' with 'foremost' and 'concern' with 'anxiety', intensifying the sense of unease.
a leading priority
Highlights the concern as a top priority.
a top-level worry
More informal, but conveys the high level of importance.
a significant preoccupation
Uses 'preoccupation' to suggest a dominating concern.
a chief reservation
Implies a hesitation or doubt that is the main concern.
a dominant apprehension
Suggests that the concern is a fear or anxiety that is very strong.
FAQs
How can I use "a principal concern" in a sentence?
You can use "a principal concern" to highlight a major worry or priority. For example, "Environmental impact is a principal concern for many.
What are some alternatives to "a principal concern"?
Alternatives include "a major concern", "a key issue", or "a primary consideration", depending on the context.
Is it better to say "principal concern" or "main concern"?
Both are grammatically correct, but "principal concern" is more formal. Use "main concern" in informal settings, and "principal concern" in formal or professional contexts.
What is the difference between "a principal concern" and "a secondary concern"?
"A principal concern" refers to the most important issue, while "a secondary concern" is a less important or subordinate issue.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested