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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 function
Grammar usage guide and real-world examplesUSAGE SUMMARY
'by function' is a correct and usable phrase in written English.
You can use it to introduce a clause in a sentence that explains how something works or operates. For example, "The brain is divided into four sections by function, with each responsible for different cognitive activities."
✓ Grammatically correct
News & Media
Science
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
58 human-written examples
Inch by inch, function by function, handset functionality is becoming web accessible.
News & Media
In a matrix organizational model, individuals are grouped by function as well as by product, and cross-functional teams are frequently employed to accomplish particular tasks.
News & Media
View a list of Financial Office contacts by function.
Academia
"We needed regulation by function, not by institution; what we had was regulation by legal loophole".
News & Media
In most aquamanilia, form follows, disguises and is disrupted by function.
News & Media
The envelopes and the returns inside weave through manual and automated areas divided by function.
News & Media
The child might sort them by color, by shape, or by function, or by something else.
News & Media
In the sustainability field, this discrepancy might partly be explained by function.
News & Media
"I'm especially enamored with the 'Sort By' function, could you please add a 'funniest first' filter?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
A general differentiation of spacecraft is by function scientific or applications.
Encyclopedias
By the way, notice that none of these changes affects the numerical value that is returned by FUNCTION KTF.
Academia
Expert writing Tips
Best practice
Use "by function" to clarify the organizing principle or classification method in your writing. This helps readers understand the structure or system you are describing.
Common error
Avoid using "by function" when describing physical characteristics or attributes unrelated to its intended operation. Focus on its role or purpose to maintain clarity.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "by function" primarily serves as an adverbial phrase, modifying a verb to specify how something is categorized, organized, or designed. As Ludwig AI confirms, it is a grammatically correct and widely used phrase in English. Examples from Ludwig show its usage across diverse contexts.
Frequent in
News & Media
40%
Science
30%
Academia
15%
Less common in
Formal & Business
8%
Wiki
5%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "by function" is a versatile and grammatically correct phrase used to indicate that something is categorized or organized based on its purpose or operation. As Ludwig AI confirms, it is widely used across diverse contexts, including news, science, and academia. While it maintains a neutral register, it's essential to use it accurately, ensuring that the description aligns with the intended role of the subject. Alternatives like "according to its function" or "based on its purpose" can provide variety, but "by function" remains a clear and effective choice in many situations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
according to its function
Emphasizes adherence to a specific purpose or role.
in terms of function
Highlights a specific aspect of functionality for consideration.
based on its purpose
Focuses on the intended reason or goal behind something.
with regard to functionality
Similar to "in terms of function" but sounds more formal.
in relation to its role
Focuses on the part something plays within a system.
dependent on its operation
Highlights reliance on how something operates.
categorized by use
Emphasizes grouping based on practical application.
as per its task
Indicates alignment with a specific assigned duty.
through its mechanism
Highlights how something achieves its function.
considering its utility
Focuses on the usefulness or practical value.
FAQs
How can I rephrase "by function" in a sentence?
You can use alternatives like "according to its function", "in terms of function", or "based on its purpose" to add variety to your writing.
What does it mean to classify something "by function"?
To classify something "by function" means to group or organize items based on their purpose, role, or operation rather than by other characteristics like size, color, or origin.
Is it better to organize "by function" or "by type"?
The best approach depends on the context. Organizing "by function" is useful when you want to emphasize the purpose or role of items, while organizing "by type" is better when highlighting similarities in form or composition.
Can "by function" be used in both formal and informal writing?
Yes, "by function" is suitable for both formal and informal writing. Its clarity and directness make it versatile across different contexts.
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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
4.5/5
Expert rating
Real-world application tested