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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
categorised under
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "categorised under" is correct and usable in written English.
You can use this phrase when referring to a topic or item that is grouped within a larger class or category. For example, "The book is categorised under the horror genre."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
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
Decking can be categorised under the "Marmite effect": people either love it or hate it.
News & Media
It includes seven enablers for adaptability, categorised under design flexibility and process flexibility.
The case studies are categorised under three headings: promoting student employability; enhancing international recruitment; and supporting academic developments.
News & Media
An earlier YouGov survey showed that many of those categorised under "no religion" also claim to pray.
News & Media
"The proposed new syllabus features just one woman – Mary Wollstonecraft – categorised under the 'liberalism' section.
News & Media
Longer term responses were categorised under four categories: professional role, work location, work context and personal and professional goals.
Science
"Some phrases were categorised under headings like 'Sex and the City'interjections'ns', and 'British slang'," wrote Seabrook, as the magic crumbled.
News & Media
You will know that such sexual congress was, in the 1970s, 80s and (ephemerally) in the 90s, compulsory in the ABC, especially in RN: categorised under 'other associated duties'.
News & Media
Searching on a particular tag (eg China) calls up all links loaded under that tag on del.icio.us, all photos using it from Flickr and all blog posts categorised under that word.
News & Media
Five of the plants have succumbed to a fungal disease which can be categorised under a general rose canker heading and is likely to be a type of botrytis.
News & Media
Based on the literature, hybrid systems are categorised under three configurations: (a) separate treatments of rainwater and greywater; (b) rainwater reused in washing machines prior to reuse as greywater; and (c) combined treatment of rainwater and greywater.
Expert writing Tips
Best practice
When using "categorised under", ensure that the category you are referencing is clearly defined and understood by your audience. This avoids ambiguity and strengthens the clarity of your writing.
Common error
Avoid using "categorised in" or "categorised as" when "categorised under" is intended. While "categorised as" can sometimes be appropriate depending on the context, "categorised in" is generally grammatically incorrect when implying hierarchical organization.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "categorised under" functions as a prepositional phrase indicating classification or belonging. It modifies a noun, specifying the category to which the noun is assigned. As Ludwig examples demonstrate, it's commonly used to organize information.
Frequent in
Science
55%
News & Media
25%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "categorised under" is a versatile prepositional phrase used to indicate that something belongs to a specific group or classification. According to Ludwig AI, this phrase is grammatically correct and widely used across various domains. It's most frequently found in scientific and news media contexts, suggesting a neutral to formal register. When writing, remember to use the phrase to show organization and hierarchy in your text. For alternatives, consider options like "classified within" or "grouped within" for similar meanings, although the best options always depends on your context. As demonstrated by the numerous examples and information, "categorised under" is a solid, conventional choice for indicating classification.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
classified within
Replaces "categorised" with "classified", offering a slightly more formal tone, but maintaining the same meaning of placing something into a specific group.
grouped within
Substitutes "categorised" with "grouped", emphasizing the act of forming a collection or cluster within a larger set.
listed under
Focuses on the act of itemizing or recording something as part of a particular category.
included within
Highlights the sense of belonging or being contained within a larger category.
placed in
A more direct and simple way of expressing categorization, suitable for less formal contexts.
assigned to
Emphasizes the act of allocating or attributing something to a specific category.
designated as
Highlights the act of formally or officially categorizing something.
identified as
Focuses on the act of recognizing and classifying something based on its characteristics.
subsumed under
A more formal and technical term suggesting that something is entirely contained within a larger category.
arranged according to
Focuses on the act of organizing things based on criteria.
FAQs
How can I use "categorised under" in a sentence?
Use "categorised under" to indicate that something belongs to a specific group or classification. For example, "These documents are categorised under 'Confidential'."
What are some alternatives to "categorised under"?
You can use alternatives like "classified within", "grouped within", or "listed under" to convey a similar meaning.
Is it correct to say "categorised in" instead of "categorised under"?
While "categorised as" can be acceptable in some contexts, "categorised under" is generally preferred when indicating that something falls within a specific category or classification within a hierarchy. "Categorised in" is generally not considered grammatically correct.
What's the difference between "categorised under" and "described as"?
"Categorised under" implies a formal classification or grouping, whereas "described as" suggests a characterization or attribute. For instance, something might be "categorised under" 'fiction' but "described as" 'suspenseful'.
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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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested