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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
this letter refers
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'this letter refers' is correct and usable in written English.
You can use it when you want to make clear that the contents of a letter are related to a specific topic or idea. For example, "This letter refers to the terms of your employment contract."
✓ Grammatically correct
News & Media
Science
Alternative expressions(1)
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
5 human-written examples
To the Editor: This letter refers to Peter Hellman's excellent article "Jewish Tombs on a Venice Sandspit" (Jan . 20.
News & Media
* * * [This letter refers to an affair Roth had with an unknown young woman.] Hotel du Cap d'Antibes Antibes 24 March [1931] Dear esteemed Stefan Zweig, I hope you're safely resettled in Salzburg, and enjoying a second spring.
News & Media
The lawyer, Alan Vinegrad of Covington & Burling in New York, wrote: "Because this letter refers to Mr. Lenowitz's ongoing cooperation with the government, which to my knowledge has not been publicly disclosed, I respectfully request that this letter be filed under seal".
News & Media
This letter refers to Trump's campaign finance report covering the period from Oct. 20-Nov.
News & Media
This letter refers to 'Pregnancy as a cardiac stress model' by E. Chung and L.A. Leinwand, Cardiovascular Research 2014 101 561 570 We were interested to read the recent article published by Chung and Leiwand entitled Pregnancy as a Cardiac Stress Model.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
This letter referred to a second article by Nocera, mostly questioning H.P.'s decision to hire Léo Apotheker as their new CEO.
News & Media
The green button the letter refers to actually activates an in-browser video recorder, which would let Jobs leave a message announcing their approval.
News & Media
Signed, "One pissed off mother," the letter refers to Max as a neighborhood "nuisance," "retarded" and a "dreadful" noise polluter.
News & Media
For example: K1, C1, C2 - the letter refers to what the boat type is: Either a kayak (K); or.
Wiki
Snopes still claims the letter referred to in this encyclopedia is a fraud, forged by Emanuel Hertz in his book Abraham Lincoln: A New Portrait.
News & Media
"This is deeply, deeply disturbing," read the letter, referring to the fact that only a fraction of the amendments filed to the bill had been voted on.
News & Media
Expert writing Tips
Best practice
Use "this letter refers" to clearly introduce the topic or subject being discussed in a formal communication.
Common error
In casual writing, consider using simpler alternatives like "this letter is about" or directly stating the topic without a formal introduction to maintain a more conversational tone.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this letter refers" functions as a transitive verb phrase introducing the subject or topic that the letter is about. According to Ludwig, the phrase is grammatically correct and usable in written English.
Frequent in
News & Media
40%
Science
40%
Formal & Business
20%
Less common in
Wiki
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "this letter refers" is a grammatically correct and usable expression for introducing the topic of a letter. While Ludwig identifies it as appropriate for formal and neutral contexts, suggesting its effectiveness for professional and informative communications. Although it is a correct expression, it's frequency is rare and that is why you should consider alternatives if you aim for more fluidity. Consider variations like "this letter concerns" or "this letter addresses" for similar meanings.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
this letter pertains to
Emphasizes relevance or connection to a specific subject.
this letter relates to
Highlights the connection or association with a particular subject.
this letter concerns
Focuses on the issues or matters discussed within the letter.
this letter addresses
Highlights the act of dealing with specific points or issues.
this letter discusses
Indicates a detailed examination or consideration of a topic.
this letter highlights
Emphasizes the prominent or important aspects of the content.
this letter alludes to
Suggests an indirect reference or mention of something.
the subject of this letter is
Inverts the sentence structure to place emphasis on the subject.
this letter touches on
Implies a brief or cursory mention of a subject.
this letter is about
Offers a more informal way of indicating the letter's subject.
FAQs
What can I say instead of "this letter refers to"?
You can use alternatives like "this letter pertains to", "this letter concerns", or "this letter addresses" depending on the specific nuance you want to convey.
How to use "this letter refers" in a sentence?
Begin with "this letter refers to" followed by the subject or topic that the letter is related to. For example, "This letter refers to your outstanding balance."
Is it correct to say "this letter is referring to"?
While grammatically correct, "this letter is referring to" is less common and sounds slightly awkward. "This letter refers to" is generally a more concise and preferred construction.
What's the difference between "this letter refers to" and "this letter concerns"?
"This letter refers to" generally introduces the main topic. "This letter concerns" often implies that the topic is a matter of importance or potential worry. The choice depends on the context and the intended emphasis.
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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
4.1/5
Expert rating
Real-world application tested