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
supplementary information
Grammar usage guide and real-world examplesUSAGE SUMMARY
'supplementary information' is correct and usable in written English.
You can use it to refer to additional information that is provided in addition to primary information or data. For example, "The report contains a summary of the key findings as well as supplementary information on the various factors that were taken into account in the analysis."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
complementary information
additional details
supporting documentation
complementary details
secondary information
background information
further clarification
expanded explanation
extra data
related materials
ancillary data
additional context
Further clarification
additional related
added perspective
supplementary input
supplementary documentation
ancillary information
supplemental information
supplementary intelligence
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
51 human-written examples
Supplementary information.
Academia
We shall, therefore, ask for supplementary information...
News & Media
(see supplementary information for details).
Science & Research
See supplementary information for details.
Science & Research
S.S. made the figures and supplementary information.
Science & Research
They may be accompanied by supplementary information.
Science & Research
Human-verified similar examples from authoritative sources
Similar Expressions
9 human-written examples
13568_2012_66_MOESM1_ESM.DOC Additional file 1 Supplementary information.
Science
For details see Supplementary Information.
Science & Research
For details, see Supplementary Information.
Science & Research
The video is part of Supplementary Information.
Science & Research
Results are in the Supplementary Information.
Science & Research
Expert writing Tips
Best practice
When referring to "supplementary information" in a document, clearly indicate where it can be found (e.g. "See Appendix A for supplementary information").
Common error
Avoid using "complementary information" when you mean "supplementary information". "Complementary" means completing or enhancing, while "supplementary" means additional. Use "complementary information" only when the additional information is essential for completeness.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "supplementary information" functions as a noun phrase, typically serving as the object of a verb or preposition. It refers to additional material provided to support or expand upon the main content. Ludwig AI confirms its proper and common use.
Frequent in
Science
60%
Academia
20%
News & Media
10%
Less common in
Formal & Business
5%
Encyclopedias
3%
Wiki
2%
Ludwig's WRAP-UP
The phrase "supplementary information" is a grammatically correct and commonly used noun phrase that refers to additional details or materials provided to support the primary content. As Ludwig AI confirms, it is frequently encountered in formal contexts such as scientific research, academic publications, and news reports. While synonyms like "additional details" or "supporting documentation" can be used, it's crucial to differentiate "supplementary" from "complementary". Remember, while “complementary” information completes, “supplementary” simply adds. When referencing "supplementary information", ensure its location is clearly indicated for easy access.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
complementary details
This variation focuses on information that completes or enhances the primary content.
additional details
This alternative is more general and refers to extra information without specifying its purpose.
secondary information
This alternative emphasizes the supporting nature of the details.
supporting documentation
This alternative emphasizes the role of the information in providing evidence or validation.
background information
This alternative highlights the context or history related to the main topic.
further clarification
This alternative focuses on resolving ambiguities or providing a more precise understanding.
expanded explanation
This alternative emphasizes the detailed nature of the additional information.
extra data
This alternative is specific to numerical or factual details.
related materials
This is a broader term covering various types of supplementary content.
ancillary data
This option is more technical and implies supporting data of secondary importance.
FAQs
How is "supplementary information" typically used in academic papers?
In academic papers, "supplementary information" often includes additional data, figures, tables, or detailed methodologies that are not essential to the main text but support the findings. It's usually referenced in the main text with a statement like, "See the "supplementary information" for details."
What are some synonyms for "supplementary information" that I can use to avoid repetition?
You can use synonyms such as "additional details", "supporting documentation", or "background information". Consider the specific context to choose the most appropriate alternative.
Where is "supplementary information" usually located in a research article?
"Supplementary information" is often found online, either as a separate file linked to the main article or within an online repository. It's typically labeled as "Supplementary Materials", "Appendix", or "Additional Files".
What is the difference between "supplementary information" and an appendix?
While both provide additional details, an appendix is usually included within the main document, whereas "supplementary information" is often a separate, online-only resource. The term "supplementary information" may encompass a wider variety of media, such as videos or datasets.
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
4.5/5
Expert rating
Real-world application tested