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
substantiate in writing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "substantiate in writing" is correct and usable in written English.
It can be used when requesting or emphasizing the need for evidence or support for a claim or statement in a written format. Example: "To proceed with your application, please substantiate in writing your qualifications and experience relevant to the position."
✓ Grammatically correct
News & Media
Alternative expressions(20)
verified in writing
acknowledged in writing
am in writing
affirmed in writing
reinforced in writing
tests in writing
confirms in writing
verify in writing
put it in writing
certify in writing
confirm in writing
provide written confirmation
offer a written guarantee
record in writing
document in writing
get it in writing
acknowledge in writing
orders in writing
document in written form
confirming in writing
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
She said there were many more examples, but that was one she could substantiate in writing.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
GNM shall notify You promptly in writing on receipt of any claim which if substantiated would constitute a breach of the warranties in Clause 5. GNM shall not compromise or settle any such claim without Your consent, such consent not to be unreasonably withheld or delayed.
News & Media
That doesn't really help substantiate your expertise for writing this book.
News & Media
The Justice Department challenged the claim, writing in a court filing that the city had provided "no evidence to substantiate its assertion that public safety would be threatened by a brief delay in the next academy class".
News & Media
She chose to ignore the fact that, eight months earlier, she had substantiated her own criticisms by writing that she had heard them from people who knew Miller well, "since I spent the weekend in the vicinity of her summer hometown".
News & Media
"I do not foresee the economy plunging to a level that will substantiate this reserve build," wrote Mr. Bove, who has a "buy" rating on the bank, in a report dated March 24.
News & Media
In a written statement, Children's Minister Edward Timpson said that although the investigations were complete they had been unable to substantiate any of the allegations.
News & Media
"The criminal allegations against her are serious, and if substantiated would be grounds for immediate termination per district policy," Helen Hollands, director of communications and marketing at Mesa Public Schools, said in a written statement to The Arizona Republic.
News & Media
They have substantiated what's called the "Best Little Boy in the World" hypothesis, first put forward in 1973 in a book by Andrew Tobias, then writing under a pseudonym.
News & Media
It's hard to substantiate the rumors (one early account of the video was written in Spanish, another comes in the form of a YouTube video), and given its disgusting supposed content, its not surprising that no one is bragging about seeing it.
News & Media
It's hard to substantiate the rumours (one early account of the video was written in Spanish, another comes in the form of a YouTube video), and given its disgusting supposed content, its not surprising that no one is bragging about seeing it.
News & Media
Expert writing Tips
Best practice
When requesting verification of details, specify "substantiate in writing" to ensure that the response is formal and provides a traceable record.
Common error
Do not limit yourself solely to written substantiation when other forms of evidence, such as photographic or video documentation, may provide more compelling support for a claim.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantiate in writing" functions as a directive, urging someone to provide written evidence or proof to support a claim. As Ludwig AI indicates, it's a usable phrase. It emphasizes the need for documented verification.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "substantiate in writing" is a grammatically sound and usable expression, albeit rare in occurrence. As confirmed by Ludwig AI, it serves as a formal directive to provide written evidence. Its primary function is to request documented validation in professional contexts like news reporting, legal matters, or business transactions. While other forms of substantiation exist, this phrase specifically emphasizes the need for traceable, written proof. Alternatives include "provide written proof" or "document with evidence".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
substantiate with written evidence
Adds emphasis that support or evidence is in written form.
provide written proof
Focuses on offering documentation as verification.
document with evidence
Highlights the act of backing up claims with tangible proof.
furnish written validation
Emphasizes the act of providing formal written confirmation.
verify through documentation
Stresses the process of confirming accuracy via official records.
validate in written form
Highlights the formal aspect of confirming information through writing.
supply written verification
Focuses on providing formal written assurance.
offer documented support
Emphasizes presenting tangible evidence to back up claims.
corroborate with written records
Highlights the act of confirming information with official documents.
affirm in written form
Stresses a formal declaration or confirmation provided through written means.
FAQs
How do I request someone to provide evidence in written format?
You can ask them to "substantiate in writing" their claims. This emphasizes the need for written proof, providing a clear and formal request.
What does it mean to "substantiate in writing"?
It means to provide written proof or documentation to support a claim or statement. This ensures that the evidence is traceable and verifiable.
What are some alternatives to saying "substantiate in writing"?
You could use alternatives like "provide written proof", "document with evidence", or "furnish written validation" depending on the context.
When is it appropriate to use the phrase "substantiate in writing"?
It is appropriate when you need formal, documented evidence to support a claim, particularly in legal, business, or academic settings.
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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