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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
one reason is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "one reason is" is a perfectly valid and usable phrase in written English.
You can use it when you are presenting an argument and you want to introduce an explanation or justification for the argument. For example: "One reason why I think this proposal is the best option is that it provides the most cost-efficient solution."
✓ Grammatically correct
News & Media
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
60 human-written examples
One reason is demographics.
News & Media
One reason is ignorance.
News & Media
One reason is money.
News & Media
One reason is laziness.
News & Media
One reason is price.
News & Media
One reason is ideological.
News & Media
One reason is yobbishness.
News & Media
One reason is military.
News & Media
One reason is financial.
News & Media
One reason is shyness.
News & Media
One reason is globalisation.
News & Media
Expert writing Tips
Best practice
When using "one reason is", ensure that the reason you provide directly and clearly addresses the question or statement you are responding to. This ensures clarity and strengthens your argument.
Common error
While "one reason is" is useful, overuse can make your writing sound repetitive. Vary your sentence structure by using synonyms or alternative phrasing to introduce different reasons or points.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "one reason is" functions as a causal connector, introducing a specific cause or explanation for a given situation. Ludwig AI confirms its grammatical correctness and frequent use in diverse contexts.
Frequent in
News & Media
73%
Science
10%
Formal & Business
6%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "one reason is" serves as a pivotal tool for introducing explanations and justifications. As Ludwig AI points out, it's grammatically sound and frequently used across various contexts, particularly within news and media. While it's highly effective, remember to avoid overuse and diversify your phrasing for a more engaging writing style. It's useful to know about the register of the phrase, which can be considered neutral and professional at the same time, meaning that it is a perfect choice for business communications. The best way to master its usage is to study its practical applications and consider its implications.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
the rationale behind this is
Focuses on the reasoning or logic behind something.
an explanation for this is
Specifically indicates that what follows is meant to clarify something.
in explanation, it is because
Provides a more verbose way to introduce the reason.
a contributing factor is
Emphasizes the role of the reason as one of several factors.
a significant factor is
Highlights the importance or impact of the reason.
the basis for this is
Implies the reason is the foundation or groundwork for something.
a cause of this is
Highlights the reason as a direct cause of the situation.
this is attributable to
Formally assigns the reason as the cause or origin.
this stems from the fact that
Suggests the reason is the origin or source of something.
this arises from
Indicates the reason is the origin or source from which something emerges.
FAQs
How can I use "one reason is" in a sentence?
The phrase "one reason is" is typically used to introduce an explanation or a cause for a particular situation. For example, "One reason is globalization" or "One reason is financial".
What phrases are similar to "one reason is"?
You can use alternatives like "a contributing factor is", "an explanation for this is", or "a cause of this is" to diversify your writing.
Is it grammatically correct to start a sentence with "one reason is"?
Yes, it is perfectly acceptable to start a sentence with "one reason is" when you want to introduce an explanation or justification. According to Ludwig AI, the phrase is grammatically correct.
What's the difference between "one reason is" and "the main reason is"?
"One reason is" suggests there are other reasons, while "the main reason is" implies that the following reason is the most important or significant. Consider the context to choose the more appropriate phrase.
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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