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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
by correspondence
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "by correspondence" is correct and usable in written English.
You can use it when you want to refer to a method or system of communication that takes place remotely or using written materials rather than in person. For example, "I took my history course by correspondence through a local college."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(6)
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
59 human-written examples
Their romance then went on by correspondence.
News & Media
Transactions conducted by correspondence only.
News & Media
It's all done by correspondence.
News & Media
Sorry to disappoint you, but it's by correspondence only.
News & Media
Mr. Armstrong said he signed Trotsky up by correspondence.
News & Media
He ordered it from Rembrandt by correspondence in 1652.
News & Media
While there, he obtained a BA degree by correspondence course.
News & Media
"It was almost like an old-fashioned romance by correspondence," said Dr. Winkler, who is divorced.
News & Media
He continued his studies by correspondence course at the Moscow theological seminary.
News & Media
Interviews with him were conducted by correspondence over the course of several months.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Giuseppe weakly opted for his mother and settled into a lengthy marriage-by-correspondence (in French) with Licy.
News & Media
Expert writing Tips
Best practice
Use "by correspondence" when emphasizing formal or documented communication that occurs remotely. This is especially useful when referring to historical contexts or official procedures.
Common error
Avoid using "by correspondence" when describing casual or immediate interactions, such as texting or phone calls. This phrase is best suited for scenarios involving letters, official documents, or formal exchanges.
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "by correspondence" functions primarily as an adverbial phrase, modifying verbs or clauses to indicate the method or means by which something is done or communicated. As confirmed by Ludwig, it's commonly used and grammatically sound.
Frequent in
News & Media
40%
Science
30%
Academia
15%
Less common in
Encyclopedias
5%
Wiki
5%
Formal & Business
5%
Ludwig's WRAP-UP
In summary, "by correspondence" is a grammatically correct and frequently used prepositional phrase that specifies communication or actions conducted through written exchanges. Ludwig AI affirms its widespread use across various domains. It is generally appropriate for formal and neutral contexts, particularly in academic, scientific, and news-related content. While alternatives such as "via written communication" or "in writing" exist, "by correspondence" emphasizes the structured and often remote nature of the interaction. It is crucial to avoid using this phrase in informal contexts where more casual expressions would be suitable.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
via written communication
Focuses on the method of communication being written rather than the interaction itself.
through postal exchange
Highlights the use of postal services for exchanging information.
in writing
Emphasizes the written format of the communication.
by mail
Specifies the use of mail as the communication medium.
through remote communication
Broader term encompassing various forms of distant communication.
via distance learning
Specifically relates to educational contexts where learning occurs remotely.
in absentia
Implies participation or completion without physical presence.
by proxy
Suggests acting or communicating through a representative.
electronically
Highlights the use of digital means for information exchange.
virtually
Indicates communication or interaction in a virtual environment.
FAQs
How can I use "by correspondence" in a sentence?
You can use "by correspondence" to describe actions or processes carried out through written communication. For example, "The course was completed "by correspondence"", or "He obtained his degree "by correspondence"".
What are some alternatives to "by correspondence"?
Depending on the context, you might use alternatives like "via written communication", "through postal exchange", or simply "in writing".
Is "by correspondence" formal or informal?
"By correspondence" leans towards a more formal register, suggesting official or documented communication. In casual contexts, simpler phrases like "by email" or "by letter" might be more appropriate.
What's the difference between "by correspondence" and "via email"?
"By correspondence" is a broader term that encompasses any form of written communication, traditionally referring to letters. "Via email" specifically refers to electronic mail. If you want to be precise about the medium, use "via email"; otherwise, "by correspondence" can cover various written methods.
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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
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested