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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
the biggest reason
Grammar usage guide and real-world examplesUSAGE SUMMARY
"the biggest reason" is correct and usable in written English.
You can use it to emphasize the most important factor in a situation. For example: "The biggest reason for their success is their dedication to hard work."
✓ Grammatically correct
News & Media
Science
Academia
Formal & Business
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
"That's the biggest reason".
News & Media
The biggest reason is shipping.
News & Media
The biggest reason is branding.
Academia
Actually, the biggest reason Obama and co.
News & Media
Huckleberries, he says, are the biggest reason.
News & Media
The biggest reason is the tax cut".
News & Media
Maybe the biggest reason is tradition.
News & Media
"Probably the biggest reason is socio-economic.
News & Media
The biggest reason is the offense.
News & Media
Inertia is probably the biggest reason.
News & Media
Why? Convenience is the biggest reason.
News & Media
Expert writing Tips
Best practice
Use "the biggest reason" to emphasize the single most important factor among several contributing factors.
Common error
Avoid using "the biggest reason" when multiple factors contribute significantly to a situation. Instead, acknowledge the complexity and discuss several key reasons.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the biggest reason" functions as a noun phrase that introduces or highlights the primary cause or justification for a particular situation, event, or decision. As confirmed by Ludwig, it's grammatically correct.
Frequent in
News & Media
65%
Science
15%
Formal & Business
10%
Less common in
Academia
5%
Reference
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "the biggest reason" is a grammatically sound and frequently used phrase for emphasizing the primary cause or justification in a variety of contexts. According to Ludwig, it is widely accepted and appears across numerous authoritative sources, including news media, scientific publications, and business reports. When using this phrase, ensure you follow it with a clear explanation of the primary reason. Also, be mindful not to oversimplify complex issues by attributing them to a single cause when multiple factors are at play. As shown by Ludwig, its versatility makes it valuable in both formal and informal communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
the main reason
A slightly less emphatic synonym for "the biggest reason".
the primary cause
Focuses on causality more explicitly than "the biggest reason".
the most significant factor
Highlights the importance of one factor over others.
the key factor
Emphasizes the importance of a contributing element.
the crucial aspect
Points out an essential element or feature.
the principal motive
Highlights the underlying motivation behind an action.
the chief determinant
A more formal and technical way of expressing the primary factor influencing an outcome.
the overriding concern
Focuses on the most important consideration.
the foremost consideration
Similar to "overriding concern" but slightly more formal.
the underlying rationale
Emphasizes the logical basis or justification.
FAQs
How can I use "the biggest reason" in a sentence?
You can use "the biggest reason" to introduce the most important factor contributing to a situation. For example, "The biggest reason for the company's success is its innovative product line".
What are some alternatives to "the biggest reason"?
Alternatives include "the main reason", "the key factor", or "the primary cause", depending on the specific context.
Is it correct to use "the biggest reason why"?
While grammatically acceptable, it can sometimes sound redundant. Consider using "the biggest reason" followed directly by the explanation for a more concise sentence.
What is the difference between "the biggest reason" and "a major reason"?
"The biggest reason" indicates the single most important factor, while "a major reason" suggests one of several important factors. The choice depends on whether you want to emphasize one primary cause or acknowledge multiple significant contributions.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested