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
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Supplementary" is correct and usable in written English.
It can be used to describe something that is added to enhance or complete something else, often in the context of additional information or materials. Example: "The supplementary materials provided in the course helped clarify the main concepts discussed in class."
✓ Grammatically correct
News & Media
Formal & Business
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
60 human-written examples
This additonal paperwork, known as a supplementary homicide report, is filed in 89% of homicide cases overall, according to a December 2013 study by the bureau of justice statistics (BJS).
News & Media
Academics and specialists have long been aware of flaws in the FBI numbers, which are based on voluntary submissions by local law enforcement agencies of paperwork known as supplementary homicide reports.
News & Media
Despite this shift, Horrocks said "considering supplementary funding [from the FCO] is something that could be on the policy agenda and could be part of the discussion about the BBC's future".
News & Media
Wednesday's "supplementary note" on the NAO's initial July report said that across 150 severance payments to senior managers in the three years to the end of 2012, the BBC paid "more salary in lieu of notice than it was contractually obliged to in 22 cases, at a total cost of £1.4m".
News & Media
Labour's manifesto, conversely, seeks at least in principle to ensure that jobs pay enough to live on, so that supplementary benefits are not needed.
News & Media
The Liberal Democrats will press for a supplementary charge on banks until 2017-18 to be announced in next month's budget, Danny Alexander, the Treasury chief secretary has announced.
News & Media
ERA is preparing a supplementary environmental impact statement (EIS) on the 3 Deeps mine.
News & Media
They criticised the investigation for being "far from robust about a number of matters" and called on the IPCC to produce a "supplementary report" to address a number of their concerns.
News & Media
He claimed Osborne's own economic mismanagement, particularly a swingeing supplementary duty imposed in 2011, was partly to blame for the sector's slump.
News & Media
Osborne made an explicit reference to the Scottish National party's quest for financial independence for Scotland as he unveiled the oil tax cuts, including cutting petroleum revenue tax from 50% to 35% and cutting a supplementary charge from 30% to 20%.
News & Media
Choi, who is also the country's finance minister, said there was no need for a supplementary budget to help the country's economy weather the outbreak.
News & Media
Expert writing Tips
Best practice
Use "supplementary" to describe something that enhances or completes something else, particularly when providing additional information or resources.
Common error
While "supplementary" is grammatically correct, it can sound overly formal in casual conversation. Opt for simpler words like "extra" or "additional" in informal settings.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "supplementary" is that of an adjective. It modifies nouns by providing additional information about them, indicating that they are added to enhance or complete something else. Ludwig AI provides examples showcasing its use in different contexts.
Frequent in
News & Media
54%
Formal & Business
24%
Science
22%
Less common in
Ludwig's WRAP-UP
The term "supplementary" is an adjective indicating something that is added to enhance or complete something else. Ludwig AI confirms its correct usage and wide application across various contexts. With a strong presence in news, formal documents, and scientific literature, it maintains a neutral to formal tone. For less formal settings, consider alternatives like ""additional"" or "extra". Its frequent use and well-defined purpose make it a valuable term in professional and academic writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Additional
Indicates something added to what already exists, similar to supplementary but more general.
Supplemental
Almost interchangeable with supplementary, often used in formal contexts.
Auxiliary
Suggests providing help or support, which is a specific type of addition.
Complementary
Highlights the completion or enhancement aspect, emphasizing how it improves the whole.
Subsidiary
Implies a secondary or subordinate addition.
Extra
A simple and direct way to indicate something added beyond what's necessary or expected.
Additive
Focuses on the process of adding something, especially in chemical or mathematical contexts.
Supporting
Emphasizes the role of providing assistance or reinforcement.
Accessory
Often refers to a non-essential item that enhances something else.
Secondary
Indicates a lower level of importance but still contributes to the whole.
FAQs
How can I use "Supplementary" in a sentence?
You can use "supplementary" to describe something that adds to or enhances something else. For example, "The report included "supplementary information" to support its claims."
What are some alternatives to "Supplementary"?
Alternatives to "supplementary" include "additional", "supplemental", or "auxiliary", depending on the context.
Is there a difference between "Supplementary" and "Supplemental"?
"Supplementary" and "supplemental" are often used interchangeably, but "supplemental" tends to be more formal. You can usually substitute one for the other without changing the meaning.
Which is correct, "Supplementary data" or "Complementary data"?
"Supplementary data" refers to additional data, while "complementary data" refers to data that completes or enhances the existing data. Choose the term that best fits the intended meaning.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested