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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
a field by which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a field by which" is correct and usable in written English.
It can be used when referring to a specific area or domain through which something is achieved or understood. Example: "The research focuses on a field by which we can better understand climate change impacts."
✓ Grammatically correct
Science
News & Media
Academia
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
How does science represent a field by which someone without a "privileged background" can succeed?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
At minimum, there has been a level playing field by which to base their investments.
News & Media
All told, the two campaigns are shortening the field by which either candidate could pick up votes.
News & Media
Jan van Tienen: I carried a dead hare across a field by its hind legs, which were covered in its own urine.
News & Media
It would be interesting to know what steps are being taken to encourage investment, in which fields, by which organizations.
Finally, and probably most fundamentally, the court posed this question: "Has not the time come to recognise that defamation is no longer a field in which trial by jury is desirable?
News & Media
The IWTH025 station, which is a KiK-net and Hi-net station (latitude 39.00923° N, longitude 140.86363° E, height 386 m; the location was confirmed by a field survey), which is called Ichinoseki-Nishi, and it is located very close to the epicenter of the 2008 Iwate-Miyagi Nairiku earthquake (2.3 km south-southwest of the epicenter, Figure 2a).
Science
Most clients of Dow Jones Newswires are financial professionals who need business news as fast as possible, presented in the easiest form to understand — a field in which being first by a few seconds can be significant.
News & Media
The system renders three major advantages: with product modeling, engineers' tasks can be focused on product design and not on design drawing; being integrated with an AI technology, the system sets up a design environment with field knowledge by which design efficiency can be improved significantly; and a new frame-rule structure for knowledge processing has been incorporated into the system.
Förster resonance energy transfer (FRET) is a near-field mechanism by which energy is transferred from a donor fluorophore to an adjacent chromophore via nonradiative dipole-dipole interactions [1], [2], [3], [4], [5], [6].
Science
The front façade faces the hospital, the back looks onto a field, from which it is separated by the gray hospital fence topped with nails.
News & Media
Expert writing Tips
Best practice
Use "a field by which" when specifically referring to an area of study or activity that facilitates a particular outcome or understanding. Ensure the context clearly establishes this relationship.
Common error
Avoid using "a field by which" when simpler alternatives like "in which" or "where" would suffice. Overusing the phrase can make your writing sound unnecessarily complex.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
"A field by which" functions as a relative clause introducing a modifier that specifies the means or method facilitated by the described field. This construction serves to elaborate on the characteristics of the field being discussed. According to Ludwig, the phrase is grammatically correct.
Frequent in
Science
30%
News & Media
30%
Academia
20%
Less common in
Formal & Business
10%
Encyclopedias
5%
Wiki
5%
Ludwig's WRAP-UP
In summary, "a field by which" is a grammatically correct relative clause that emphasizes the instrumental role of a specific field in achieving particular outcomes or enabling certain processes. While grammatically sound and usable, as Ludwig AI confirms, its frequency is rare. Alternative phrases like "an area in which" are generally more common and simpler. It is most suited for formal and scientific contexts where precision and detail are valued. The phrase appeared in authoritative sources such as The New York Times and The Guardian.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
an area in which
Replaces 'by which' with a more common prepositional phrase.
a domain where
Substitutes 'field' with 'domain' and 'by which' with 'where'.
a mechanism through which
Replaces 'field' with 'mechanism' and 'by which' with 'through which'.
a sphere wherein
Uses more formal synonyms for 'field' and 'by which'.
a route whereby
Replaces 'field' with 'route' and 'by which' with 'whereby'.
a medium through which
Changes 'field' to 'medium', focusing on the means of transmission.
a context in which
Replaces 'field' with 'context', shifting the focus to circumstances.
a discipline where
Replaces 'field' with 'discipline', suitable when referring to academic subjects.
a channel through which
Replaces 'field' with 'channel', implying a pathway.
a framework within which
Substitutes 'field' with 'framework', emphasizing structure and organization.
FAQs
How can I use "a field by which" in a sentence?
Use "a field by which" to describe an area or discipline that enables a specific result or understanding, as in: "The research focuses on "a field by which" we can better understand climate change impacts."
What are some alternatives to "a field by which"?
You can use alternatives like "an area in which", "a domain where", or "a mechanism through which", depending on the specific context.
Is it more appropriate to say "a field in which" or "a field by which"?
"A field in which" is generally more common and often preferred for its simplicity. "A field by which" is correct, but can sound more formal or complex. Consider if a simpler phrasing would suffice.
When is it most appropriate to use "a field by which"?
It's most appropriate when you want to emphasize that the field itself is instrumental in achieving a particular outcome or facilitating a certain understanding. Use it when the field directly contributes to the process you're describing.
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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
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested