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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
reason for why
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "reason for why" is not considered correct in standard written English.
It is generally used when explaining the cause or justification for something, but it is redundant and can be simplified. Example: "The reason for why we chose this method is due to its efficiency."
⚠ May contain grammatical issues
News & Media
Science
Academia
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
Speaking about it puts the very reason for why we are here in doubt.
News & Media
One thing you won't find, though, is a good reason for why we hiccup.
Academia
These results imply that the allocative efficiency hypothesis may not be the primary reason for why schooling impacts health outcomes.
And that's the reason for why the other vision did not materialise.
News & Media
These results suggest a reason for why DSA shows a higher chlorine selectivity than RuO2 and propose an experimental test of the hypothesis.
Science
However, the prevailing paradigm of somatic evolution and multi-step tumorigenesis, while useful in many instances, offers no logically coherent reason for why oncogenesis recapitulates ontogenesis.
The mechanisms of damping and the reason for why it is not possible to estimate damping with respect to the material properties are discussed.
Science
Everyone who works in the theatre will give a different reason for why they fell in love with it.
News & Media
The White House has given no sensible reason for why Mr. Bush is unwilling to appear alone.
News & Media
"We haven't been given a reason for why this has happened beyond that the arts council has demanded it.
News & Media
If you find there's a reason for why they're acting the way they are, offer to help.
News & Media
Expert writing Tips
Best practice
When seeking clarity, prefer using "reason why", "reason that", or "explanation for" over the grammatically awkward "reason for why".
Common error
Do not use "reason for why" as it's redundant. The word "why" already implies "for what reason", making the "for" unnecessary. Instead, choose "reason why" or restructure your sentence.
Source & Trust
81%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "reason for why" functions as a noun phrase intended to identify the cause or explanation behind something. However, it's grammatically redundant. Examples from Ludwig show its usage across various contexts despite this redundancy.
Frequent in
News & Media
38%
Science
30%
Academia
15%
Less common in
Wiki
10%
Formal & Business
5%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, while the phrase "reason for why" is frequently used across various sources, Ludwig AI identifies it as grammatically incorrect due to its redundancy. The word "why" already implies a reason, making the "for" unnecessary. To improve clarity and grammatical accuracy, it's recommended to use alternatives such as "reason why", "the reason that", or "explanation for". Although commonly found in news, media, and even academic contexts, its use should be carefully considered in formal writing to maintain a professional tone. By opting for more concise and grammatically sound alternatives, you can express the cause or justification more effectively.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
reason why
Omits the redundant "for", resulting in a more concise and grammatically standard phrasing.
the reason that
Replaces "for why" with "that", providing a more formal and grammatically correct structure.
cause for which
Substitutes "reason" with "cause", highlighting the causal relationship, and uses "which" for a more formal tone.
explanation for
Offers an alternative term to "reason", focusing on clarifying or elucidating something.
justification for
Replaces "reason" with "justification", emphasizing the act of defending or vindicating something.
grounds for
Substitutes "reason" with "grounds", indicating the basis or foundation for something.
basis for
Similar to "grounds for", but focuses on the underlying support or foundation.
rationale behind
Uses "rationale" to indicate the underlying logic or principles, and "behind" to specify the cause.
motive for
Substitutes "reason" with "motive", highlighting the driving force or intention behind an action.
the purpose of
Focuses on the intended goal or aim, rather than the explicit reason.
FAQs
What's a more grammatically correct way to say "reason for why"?
You can use "reason why" or "the reason that". Omitting the "for" makes the phrase more concise and grammatically sound.
Is "reason for why" considered acceptable in formal writing?
No, "reason for why" is generally considered grammatically incorrect in formal writing. Opt for alternatives like "explanation for" or "justification for" instead.
Can I use "reason for why" in informal conversations?
While "reason for why" is commonly used, even in informal settings, it's best to use "reason why" for better grammar. The redundancy of "for" is generally discouraged, even informally.
What are some alternatives to "reason for why" that highlight cause and effect?
You can use phrases like "cause for which", which emphasizes the causal relationship, or "rationale behind", focusing on the underlying logic. These alternatives offer a more precise and grammatically correct way to express causality.
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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
81%
Authority and reliability
3.8/5
Expert rating
Real-world application tested