Used and loved by millions
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 that purpose
Grammar usage guide and real-world examplesUSAGE SUMMARY
"on that purpose" is a grammatically correct and usable phrase in written English.
It is used to introduce an action or intention that is related to a previously-stated purpose. For example, "I went to the store on that purpose--to pick up some groceries."
✓ Grammatically correct
News & Media
Science
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
11 human-written examples
"I've concentrated on that purpose every day, and I've concentrated on my goals every day".
News & Media
A clear and compelling purpose, and concrete goals and plans based on that purpose, are critical.
News & Media
With a sharper focus on that purpose, a temporary move out of London is worth reconsidering – and there must be other big ideas that merit examination.
News & Media
McCue is clear on that purpose: recruit top talent.
News & Media
Be clear about your purpose, then invite and exclude based on that purpose.
News & Media
If the design consideration is not enough to determine the technical specifications of each component, some criteria for process capability will be potentially used on that purpose.
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
Mr. TAYLOR: We did that on purpose because it's a lower level framework on purpose.
News & Media
Maybe it does serve that purpose on some level.
News & Media
"We're hedging on that on purpose," Dr. Gould said.
News & Media
"I'm not like that on purpose.
News & Media
"You did that on purpose".
News & Media
Expert writing Tips
Best practice
When using "on that purpose", ensure the purpose is clearly defined in the preceding context to avoid ambiguity.
Common error
Avoid using "on that purpose" in casual conversations or informal writing. It can sound stilted and unnatural. Simpler phrases like "that's why" or "for that reason" are usually more appropriate.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on that purpose" functions as a prepositional phrase indicating the reason or intention behind an action. It modifies a verb or clause, providing context for why something is being done. Ludwig AI indicates that the phrase is grammatically correct, although not as common as alternatives.
Frequent in
News & Media
40%
Science
30%
Formal & Business
15%
Less common in
Wiki
5%
Academia
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "on that purpose" is a grammatically correct prepositional phrase used to indicate the reason or intention behind an action. While Ludwig AI confirms its grammatical soundness, the analysis reveals it is less common than alternatives like "for that reason" or "with that intention". Predominantly found in News & Media and Scientific contexts, its formal tone suggests it's best suited for structured and precise communication. Writers should be mindful of the potential for the phrase to sound stilted in informal settings, opting for simpler alternatives when appropriate. Despite its correctness, its relative infrequency means careful consideration of context is key to effective usage.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
for that reason
Emphasizes the causal relationship, focusing on the reason behind the action.
with that intention
Highlights the specific intent or goal driving the action.
toward that objective
Focuses on the desired outcome or aim of the action.
to that end
A more concise way of stating that something is done to achieve a specific result.
for this cause
Emphasizes a principle or belief that motivates the action.
in pursuit of that goal
Highlights the active effort to achieve a specific aim.
with that aim
A shorter and more direct way to express having a specific goal.
in furtherance of that purpose
A more formal way to describe actions that help to advance a goal.
concerning that objective
Indicates that something relates to or is about a specific objective.
regarding that intention
Similar to 'with that intention' but may imply consideration or discussion.
FAQs
How can I use "on that purpose" in a sentence?
You can use "on that purpose" to introduce an action related to a previously mentioned goal. For instance, "I went to the library; on that purpose, I intended to research the topic further."
What are some alternatives to "on that purpose"?
Alternatives include "for that reason", "with that intention", or "to that end". The best choice depends on the specific context.
Is "on that purpose" formal or informal?
"On that purpose" leans towards formal usage. In informal contexts, simpler alternatives are generally preferred.
What's the difference between "on that purpose" and "for that purpose"?
"For that purpose" is more common and widely accepted. "On that purpose" is less frequently used and may sound slightly unusual to some readers.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested