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 information
Grammar usage guide and real-world examplesUSAGE SUMMARY
"primary information" is a correct and usable phrase in written English.
You can use it to refer to information that is gathered firsthand or is otherwise considered especially reliable or important. For example, "The primary information collected from interviews with the team indicated that they had a strong commitment to the project."
✓ Grammatically correct
Science
News & Media
Academia
Encyclopedias
Formal & Business
Wiki
Alternative expressions(20)
previous information
useful information
preliminary data
major information
key information
prior information
necessary assistance
prior knowledge
proper information
primary source
essential information
Fundamental knowledge
environmental information
Key data
upfront information
prior insights
essential details
preliminary information
advance notice
fundamental facts
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
Computer-printed, indexed abstracting journals provide a means of keeping users informed of primary information sources.
Encyclopedias
Those are our primary information organizers.
News & Media
Documenting and disclosing primary information about data collection and analysis.
These facilities provide primary information for control and siting purpose.
If it were written 20 years from now, much primary information would be lost.
News & Media
A president who avoids primary information only gets the spin, not the reality.
News & Media
Such conjunction may be the first stage of computation that integrates primary information to establish the cognitive map.
Science & Research
But I think our primary information about the systems comes from studies of infants.
The handout from class is the primary information source for this assignment.
Your information is divided into tabbed groups (primary information, research, contact information, Awards).
In this way, primary information elements and relations between such elements are identified.
Science
Expert writing Tips
Best practice
When using "primary information" in your writing, ensure that you clearly identify the source to establish credibility.
Common error
Avoid presenting interpretations or analyses as "primary information". Clearly distinguish between original data and your own conclusions.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "primary information" typically functions as a noun phrase, referring to fundamental or original data that serves as the basis for further analysis or understanding. As Ludwig highlights, it is widely used to denote essential information.
Frequent in
Science
40%
News & Media
25%
Academia
20%
Less common in
Encyclopedias
5%
Formal & Business
5%
Wiki
5%
Ludwig's WRAP-UP
In summary, "primary information" is a widely used and grammatically correct noun phrase that refers to original and foundational data. Ludwig AI confirms its frequent usage across various domains, particularly in science, news, and academia. When using this phrase, it's important to clearly identify the source to maintain credibility and avoid confusing it with secondary interpretations. Remember, it underscores reliability and serves as a strong foundation for arguments and conclusions.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Firsthand data
Emphasizes the direct and original nature of the information.
Original source material
Highlights the material's origin and its role as a foundation.
Initial findings
Focuses on information that is discovered at the beginning of a process.
Key data
Emphasizes the importance and relevance of the information.
Core intelligence
Highlights the essential and fundamental aspect of the information.
Fundamental knowledge
Stresses the basic and foundational nature of the information.
Principal facts
Underlines the factual and leading nature of the information.
Central intelligence
Emphasizes the central importance of the information.
Main insights
Highlights the crucial understandings gained from the information.
Essential data
Focuses on the indispensable nature of the information.
FAQs
How can I effectively use "primary information" in a research paper?
In a research paper, "primary information" should be presented with proper citation to its original source. Ensure that you contextualize the information and explain its relevance to your argument.
What is the difference between "primary information" and secondary information?
"Primary information" is firsthand evidence or original data, while secondary information is an interpretation or analysis of that data. For example, a historical document is "primary source", while a historian's analysis of it is a secondary source.
What are some reliable sources of "primary information"?
Reliable sources of "primary information" include original research papers, official documents, and firsthand accounts. The reliability depends on the source's credibility and methodology.
How can I verify the accuracy of "primary information"?
Verify the accuracy of "primary information" by cross-referencing it with other credible sources and evaluating the methodology used to collect it. Look for corroborating evidence to ensure reliability.
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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested