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
primary resource
Grammar usage guide and real-world examplesUSAGE SUMMARY
"primary resource" is a correct and usable phrase in written English.
It is typically used to refer to the main or most important source of information or data for a particular topic or study. You can use it whenever you want to emphasize that a certain source is the most significant or influential in your research or argument. For example: "The primary resource for understanding the effects of climate change on our oceans is the Intergovernmental Panel on Climate Change's latest report."
✓ Grammatically correct
Academia
News & Media
Science
Alternative expressions(4)
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
59 human-written examples
The primary resource is the painting itself".
News & Media
With its Taíno gallery, the museum instantly becomes a primary resource for art historians and anthropologists.
News & Media
But cobalt will be the primary resource mined at the Idaho Cobalt Project near Salmon, Idaho.
News & Media
The Internet has become a primary resource for classical music: the music itself as well as information about it.
News & Media
For a more artistic approach, this Teachit Primary resource looks at representations of flowers in the artwork of Claude Monet.
News & Media
For Ms. Dickson and others, the Internet acts as a primary resource.
News & Media
The black church, he often said, was the primary resource for the black community.
News & Media
In the modern society of enterprise and management, knowledge is the primary resource and society's true wealth.
News & Media
Thus, Booker McConnell, founded in 1906 as a sugar company, developed shipping on the back of its primary resource.
News & Media
The International Students and Scholars Office ISSOO) is the primary resource on campus for international students.
Academia
The deteriorating effects of the primary resource delays on the transient stability are also treated analytically.
Science
Expert writing Tips
Best practice
When indicating the most important source for a task, use "primary resource" to clearly establish its priority. For example, "The instructor is your "primary resource" for clarification on the assignment."
Common error
Avoid limiting yourself to a single "primary resource" when conducting research. Supplement your findings with additional sources to ensure a comprehensive and well-rounded understanding of the topic.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "primary resource" functions as a noun phrase, typically acting as a subject complement or object in a sentence. Ludwig AI confirms its role in identifying the most important source of information or assistance. It's used to pinpoint the main reference point for a given context, as evidenced in the examples provided.
Frequent in
Academia
25%
News & Media
32%
Science
32%
Less common in
Formal & Business
7%
Wiki
3%
Reference
1%
Ludwig's WRAP-UP
In summary, the phrase "primary resource" is a grammatically sound and frequently used expression to denote the most important source of information or support. Ludwig AI analysis of numerous examples confirms its common usage across academic, news, and scientific domains. When writing, it's best to use "primary resource" to precisely identify the main source while avoiding over-reliance on any single resource. Several alternatives exist, such as “main source” and “key resource”, for varied expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
main source
Focuses on the centrality of the source.
key resource
Emphasizes the importance and significance of the resource.
principal source
Highlights the leading or foremost nature of the source.
chief resource
Stresses the resource as being the most important or dominant.
central resource
Indicates that the resource is at the core or center of something.
essential resource
Highlights that the resource is absolutely necessary or indispensable.
fundamental resource
Emphasizes the resource as being a basic or foundational element.
core resource
Similar to central, emphasizing the resource as being the heart of something.
leading source
Focuses on the source being at the front or head, implying guidance.
major resource
Indicates the resource is considerable in size, importance, or extent.
FAQs
How can I use "primary resource" in a sentence?
You can use "primary resource" to indicate the most important source of information or support. For instance, "The library is a "primary resource" for students conducting research."
What's an alternative to saying "primary resource"?
Alternatives include "main source", "key resource", or "principal source". The best choice depends on the specific context.
Is it appropriate to use "primary resource" in formal writing?
Yes, "primary resource" is suitable for formal writing, especially in academic, scientific, and professional contexts. It clearly and concisely identifies the most important resource.
What is the difference between a "primary resource" and a secondary resource?
A "primary resource" is the main or most important source, while a secondary resource provides additional information or support, but is not the core focus.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested