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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
justification on why
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "justification on why" is not correct in standard written English.
It is typically used when explaining the reasons or rationale behind a decision or action. Example: "The committee provided a justification on why the project was deemed necessary for the community's development."
⚠ May contain grammatical issues
Science
News & Media
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
1 human-written examples
A brief explanation together with a justification on why this approach was selected should be given.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
We are miserable, unhappy people on the show, and this is a really good justification of why we are".
News & Media
It kind of fed into the justification of why he loves America so much".
News & Media
Justification of why it happens is provided.
Students worked together in small groups to answer each question and write a justification of why the correct answer was correct along with additional justifications for why each incorrect answer was incorrect.
Science
Facebook frequently falling back on pointing to its massive size as the justification for why it keeps failing on so many types of issues — be it consumer safety or indeed data protection compliance — may even have interesting competition-related implications, as some have suggested.
News & Media
Biological justifications of why many of these genes reside within selection signatures were discussed in detail elsewhere [ 37].
She called on the speaker "to provide justification for why he should continue to lead the conference".
News & Media
According to sources on the Hill, a common justification for why the harassment isn't reported is that no female MP, journalist, or staffer the harassment is almost always against females wants to be "that girl".
News & Media
It is the intellectual justification for why such a high premium is placed on degrees from first-tier business schools, and why the compensation packages for top executives have become so lavish.
News & Media
"The university's justification for why they sold the collection is rather short-term.
News & Media
Expert writing Tips
Best practice
Prefer the phrase "justification for why" or "rationale for why" for grammatically correct and clearer communication. Using "justification on why" may confuse your audience.
Common error
Be mindful of preposition choices after nouns like "justification". While "on" might seem appropriate, "for" is the standard and accepted preposition to use in this context.
Source & Trust
81%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "justification on why" aims to provide a reason or explanation for a particular action, decision, or belief. Ludwig AI points out that the usage is not standard in written English, suggesting alternative phrasings for improved clarity and correctness.
Frequent in
Science
33%
News & Media
33%
Formal & Business
0%
Less common in
Social Media
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "justification on why" seeks to provide a reason or explanation, it deviates from standard English grammar. Ludwig AI analysis suggests that "justification for why" or "rationale for why" are more appropriate alternatives. Although examples can be found across various source types, including science and news media, its infrequent and technically incorrect usage suggests that writers should opt for more conventional phrasing to ensure clarity and credibility. By avoiding this construction, you enhance the precision and professionalism of your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
justification for why
Replaces the preposition "on" with "for", resulting in a grammatically standard construction.
rationale for why
Substitutes "justification" with "rationale", offering a synonym that maintains a similar level of formality and meaning but with a different wording.
reason for why
Uses "reason" instead of "justification", making it a slightly less formal way to ask for an explanation.
explanation for why
Employs "explanation" as a more direct synonym for "justification", suitable for various contexts.
grounds for why
Replaces "justification" with "grounds", indicating the basis or foundation for something.
basis for why
Uses "basis" instead of "justification", referring to the underlying support or reason.
reasons why
Omits the preposition and directly uses the plural noun "reasons", making it slightly more concise.
justification of
Focuses on the act of justifying, rather than the reason itself.
argument for why
Suggests presenting a reasoned case or defense for a particular viewpoint or action.
the why behind
Offers a more informal and conversational way to inquire about the reasons or motivations.
FAQs
What is a more grammatically sound alternative to "justification on why"?
A more grammatically sound alternative to "justification on why" is "justification for why". This phrasing aligns with standard English grammar conventions.
Can I use "reason on why" instead of "justification on why"?
While "reason" and "justification" can sometimes be synonyms, "reason for why" is the preferred phrasing. "Reason on why" is not a standard English construction.
How does "justification for why" differ from "rationale for why"?
"Justification for why" and "rationale for why" are very similar. "Rationale" often implies a more comprehensive and structured explanation than "justification", which can be more specific.
When is it appropriate to use "justification on why"?
Given that it's not considered standard English, it's best to avoid "justification on why" in formal writing. Opt for "justification for why" or another alternative depending on the specific context.
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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
2.8/5
Expert rating
Real-world application tested