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
Central reason
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Central reason" is correct and usable in written English.
It can be used to refer to the main or primary cause or explanation for something. Example: "The central reason for the project's failure was a lack of adequate funding."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(6)
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
But the central reason is personal.
News & Media
First, and the central reason for it being put on the ballot, Prop.
The central reason for reform, however, has come from pressure closer to home.
News & Media
The central reason for this desirability gap is found in the cost calculations of American drivers.
News & Media
King had cited the investigation as a central reason for backing out of the deal.
News & Media
"A central reason for that can be summed up in one word: Iraq".
News & Media
That, in the end, is the central reason why I have been musing of late.
News & Media
To show black life, period, was the central reason black papers were founded.
News & Media
Yet the central reason for all the deals is falling prices.
News & Media
That process, they say, has been a central reason for the extraordinary sluggishness of the recovery.
News & Media
The central reason for the importance of tonight's debate is of course Mr. Perry's predicament.
News & Media
Expert writing Tips
Best practice
For emphasis, use "the central reason" to clearly single out the main point. This works well in summaries or conclusions.
Common error
Avoid presenting a minor contributing factor as the "central reason". Ensure the reason you identify is the primary and most influential factor. If not, consider using phrases like "a contributing factor" or "one reason among others".
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "central reason" functions as a noun phrase that typically serves as a subject complement or object complement, identifying the primary cause or justification for something. As Ludwig AI suggests, this phrase is used to specify the core explanation or motive.
Frequent in
News & Media
69%
Science
18%
Formal & Business
6%
Less common in
Encyclopedias
1%
Reference
1%
Social Media
1%
Ludwig's WRAP-UP
In summary, "central reason" is a grammatically sound and frequently used phrase to denote the primary cause or explanation for something. As Ludwig AI confirms, it is considered correct and usable in written English. It is versatile enough for use in news, academic, and business contexts. While alternatives like "main reason" or "primary reason" exist, "central reason" is effective for highlighting the core justification or motive. However, ensure that the identified reason is genuinely the most important factor to avoid misleading your audience.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Main reason
Replaces "central" with "main", offering a more direct synonym.
Primary reason
Substitutes "central" with "primary", emphasizing the foremost cause.
Key reason
Replaces "central" with "key", highlighting the importance of the reason.
Chief reason
Replaces "central" with "chief", indicating the most important reason.
Principal cause
Uses "cause" instead of "reason", indicating a direct source or origin.
Fundamental reason
Highlights the foundational or basic nature of the reason.
Underlying reason
Emphasizes that the reason is fundamental and foundational.
Core reason
Indicates the reason is at the very heart of the matter.
The main factor
Shifts the focus to a factor rather than a reason, implying a contributing element.
The biggest driver
Uses a more dynamic term "driver" to suggest the main impetus or force.
FAQs
How can I use "Central reason" in a sentence?
You can use "Central reason" to highlight the main cause or explanation for something. For example, "The "central reason" for the project's delay was a lack of funding."
What are some alternatives to "Central reason"?
Alternatives include "main reason", "primary reason", or "key reason", depending on the specific context and emphasis you want to convey.
Is it better to say "Central reason" or "Main reason"?
Both "Central reason" and "main reason" are correct. "Central" might imply a more fundamental or core aspect compared to "main", but they are often interchangeable.
What is the difference between "Central reason" and "Underlying reason"?
"Central reason" refers to the primary cause, while "underlying reason" suggests a more fundamental, often less obvious, cause. The underlying reason is often a deeper, more foundational factor.
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