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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
on what purpose
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on what purpose" is correct and usable in written English.
You can use it when you are asking someone the reason why they are doing something. For example, "On what purpose did you come here today?".
✓ Grammatically correct
News & Media
Wiki
Academia
Science
Formal & Business
Encyclopedias
Alternative expressions(20)
for what reason
with what aim
to what end
what is the reason for
on what style
on what subject
on what platform
on what level
on what based
on what means
what is the explanation
on what reason
on what foundation
on what base
on what evidence
what is the foundation
upon what authority
on what standard
on what grounds
on what authority
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
7 human-written examples
Microsoft did not elaborate on what purpose the communications have, or whether it stores or tracks the data, which includes machine identification numbers.
News & Media
Depending on what purpose is being served strategic, economic or domestic it can leave intact or even protect the economies, social structures and religions of its subject nations; or it can wipe them out.Even more than the Soviet monolith, the tsarist realm varied greatly in form.
News & Media
In the business context there is no real agreement on what purpose means.
News & Media
Conflicts fade away as people's energy and ideas are brought together to deliver on what purpose makes possible.
News & Media
Through my research on what purpose actually is, I've found that the popular idea of purpose has become reserved for a select few.
News & Media
Horn: The advice I'd have is to be very clear on what purpose and mission they're going into it with, and what they're trying to get out of it.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
3. Interview a scientist on their view of what purpose science should serve in the world in the next 25 years.
News & Media
Pledging to shine a light on the issue, he added: "So we're going to push for more transparency on who owns companies, on who's buying land and for what purpose, on how governments spend their money, on how gas, oil and mining companies operate, on who is hiding stolen assets and how we recover and return them".
News & Media
Pledging to shine a light on the issue, the prime minister added: "So we're going to push for more transparency on who owns companies, on who's buying up land and for what purpose, on how governments spend their money, on how gas, oil and mining companies operate, on who is hiding stolen assets and how we recover and return them".
News & Media
Exactly how the statistics are compiled and delivered during a game depends on how quickly, and for what purpose, a customer needs the data, analysts say.
News & Media
The EFF criticises e-reader manufacturers for not giving customers clear information on the data that is being held on them – and for what purpose.
News & Media
Expert writing Tips
Best practice
When using "on what purpose", ensure the context is formal or requires a deliberate, thoughtful inquiry into the underlying reason. It's often used when questioning the justification for an action or decision.
Common error
Avoid using "on what purpose" in informal settings, as it can sound stilted or unnatural. Opt for simpler alternatives like "why" or "what's the reason for" in everyday conversation.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on what purpose" functions as an interrogative prepositional phrase, typically used to introduce a question about the reason or intention behind a particular action or decision. While grammatically correct, Ludwig AI indicates it's less common in contemporary English.
Frequent in
News & Media
33%
Wiki
17%
Academia
17%
Less common in
Science
17%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "on what purpose" is a grammatically sound but somewhat uncommon phrase used to inquire about the reasons or intentions behind an action or decision. As Ludwig AI highlights, this phrase is more formal and can sound stilted in modern English, making simpler alternatives like "why?" or "what's the reason?" often preferable. Usage is primarily found in news, academic, and wiki contexts. When deciding to use "on what purpose", consider the formality of the situation and whether a more direct question would be more appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
for what reason
Replaces 'purpose' with 'reason', focusing on the cause or justification.
with what aim
Substitutes 'purpose' with 'aim', emphasizing the goal or objective.
to what end
A more formal way of asking about the intended outcome or result.
what is the reason for
Expands the phrase into a full question, providing more context.
what is the objective of
Uses 'objective' instead of 'purpose', highlighting a specific target.
why is it for
Simplifies the question to a basic inquiry about the intended use.
what's the point of
An informal way of questioning the value or relevance of something.
what's the use of
Similar to 'what's the point', but more focused on practical application.
what's the intention behind
Focuses on the underlying plan or motive.
what motivates
Shifts the focus to the driving force or incentive.
FAQs
How can I use "on what purpose" in a sentence?
You can use "on what purpose" to inquire about the reason or intention behind something, particularly in formal contexts. For instance, "On what purpose was this meeting called?" or "On what purpose are these funds being allocated?"
What is a more common alternative to "on what purpose"?
A more common and less formal way to ask about the purpose is to simply ask "Why?" or "What is the reason?" depending on the context.
Is "on what purpose" considered formal language?
Yes, "on what purpose" is generally considered formal and may sound somewhat archaic in modern English. Simpler alternatives are often preferred in everyday speech and writing.
What is the difference between "on what purpose" and "for what purpose"?
While both phrases inquire about the reason behind something, "for what purpose" is more common and generally preferred in contemporary English. "On what purpose" is less frequently used and may sound more formal or stilted.
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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
4.1/5
Expert rating
Real-world application tested