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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
principal purpose
Grammar usage guide and real-world examplesUSAGE SUMMARY
"principal purpose" is correct and usable in written English.
It is typically used to refer to the most important or primary purpose of something. For example, "The principal purpose of this project is to reduce waste and increase recycling efforts."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
main objective
primary aim
chief intention
core reason
fundamental goal
central focus
key function
primary function
overriding concern
driving force
principal motivation
primary purpose
principal intent
principal objective
major purpose
main purpose
principal subject
principal intention
focused purpose
principal goals
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
60 human-written examples
Today a new wave of fortification is coming, and once again its principal purpose is marketing.
News & Media
The principal purpose of the League is to award & record the master points earned by its sixty-thousand members.
News & Media
"The principal purpose of trademark law is first to protect consumers and then to protect brand owners," he added.
News & Media
He did not mention that "their identity and their mission" — their principal purpose, their raison d'être — is often religious proselytization.
News & Media
Its principal purpose is to enable flexibility, so that halls can adapt to the needs of different kinds of event.
News & Media
And those 23 Republicans split from those in their party who believe their principal purpose is to humble President Obama.
News & Media
He is aggressive, imaginative and charming and his teams are aggressive, imaginative and charming, reliably serving their principal purpose: captivating a captive audience.
News & Media
And again like Utz, his principal purpose in life became protecting his beloved collection, first from the Nazi occupiers in World War II, then from the Communist regime.
News & Media
"The principal purpose and the necessary effect of this law are to demean those persons who are in a lawful same-sex marriage".
News & Media
WITHIN the European Union, whose principal purpose is to knit its members into a single seamless market, the country's competitive tactics have drawn complaints.
News & Media
House Republicans said the principal purpose of tax-cut legislation was to stimulate economic growth, not to provide checks for families who do not pay income tax.
News & Media
Expert writing Tips
Best practice
When using "principal purpose", ensure that it clearly identifies the most important aim or function, avoiding ambiguity by providing specific context. For example, instead of saying "The principal purpose is improvement", specify "The "principal purpose" of the new policy is to improve employee retention".
Common error
Avoid using "principle purpose". "Principal" is an adjective meaning main or most important, while "principle" is a noun referring to a fundamental truth or proposition. Remember, the "principal purpose" is the main goal.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "principal purpose" functions as a noun phrase that typically acts as a subject complement or object in a sentence. It identifies the core intention or function associated with a subject, as demonstrated by Ludwig's examples.
Frequent in
News & Media
36%
Science
34%
Formal & Business
10%
Less common in
Encyclopedias
4%
Wiki
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "principal purpose" is a grammatically sound and frequently used phrase that denotes the main intention or function of something. Ludwig AI affirms its correctness and widespread applicability. Predominantly found in news, scientific, and formal business contexts, it maintains a neutral to formal tone. When employing this phrase, ensure clarity and avoid confusion with "principle". Alternatives like "main objective" or "primary aim" can be used depending on the specific context. As highlighted by Ludwig's examples, understanding and correctly utilizing "principal purpose" enhances precision in writing and communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
main objective
Focuses on the key goal to be achieved, shifting from 'purpose' to a more action-oriented term.
primary aim
Replaces "purpose" with "aim", emphasizing the intended outcome or direction.
chief intention
Substitutes "principal" with "chief" and "purpose" with "intention", highlighting the underlying plan.
core reason
Emphasizes the fundamental justification or explanation for something.
fundamental goal
Highlights the basic or essential target to be achieved.
central focus
Shifts the emphasis to the main point or area of concentration.
key function
Focuses on the main task or activity that something is designed to perform.
primary function
Describes main intended task to be performed.
overriding concern
Indicates the most important matter that needs to be addressed or considered.
driving force
Highlights the factor that most strongly influences or motivates an action or decision.
FAQs
How can I use "principal purpose" in a sentence?
You can use "principal purpose" to describe the main intention or function of something. For example, "The "principal purpose" of this tool is to simplify data analysis", or "The "principal purpose" of the meeting is to discuss the new strategy".
What are some alternatives to "principal purpose"?
Some alternatives to "principal purpose" include "main objective", "primary aim", or "chief intention". The best choice depends on the specific context.
Is it correct to say "principle purpose" instead of "principal purpose"?
No, it is not correct. "Principal" is an adjective meaning main or most important, while "principle" is a noun meaning a fundamental truth or proposition. Use "principal" to describe the "principal purpose".
What is the difference between "primary purpose" and "principal purpose"?
"Primary purpose" and "principal purpose" are often interchangeable. Both refer to the main or most important purpose. However, "principal" might suggest a slightly higher degree of significance or authority. In most contexts, using either phrase is acceptable.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested