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
category
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "category" is correct and can be used in written English.
You can use it to refer to a group of people or things having some common characteristics. For example, "The movement was divided into three categories: children, adults, and seniors."
✓ Grammatically correct
News & Media
Film
Sport
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
"The whole category has been very euphemistic, or paternalistic even, and we're saying, enough with the euphemisms, and get over it.
News & Media
Even so, the favourites for that category remain Kevin Spacey in American Beauty and Russell Crowe in The Insider.
News & Media
Based on the true story of the wrongful conviction of black boxer Rubin Carter, the film has been criticised for bending the facts, which may have damaged its chances, but its star, Denzel Washington, appears in the best actor category.
News & Media
The cyclone has approached from the east after crossing the Gulf of Carpentaria from Queensland's Cape York Peninsula where it made landfall as a category four storm but caused minimal damage.
News & Media
Hilary Swank, who has already won a Golden Globe for her role in Boys Don't Cry, is one of the favourites for the best actress Oscar, a category that sees Meryl Streep win a record 12th nomination for Music of the Heart.
News & Media
In plain English, he was likely to be "mentally retarded" and fall into the very category of prisoner who the supreme court had just declared must not be executed.
News & Media
If a true sign of a great player is an ability to have slotted into any team in any era, Collins certainly fitted that rare category.
News & Media
In the text category, Taylor Auerbach of the Daily Telegraph has been nominated for his reports on slum landlords and Amnesty international, and Guardian Australia's own Michael Safi has been recognised for his reporting on terror and asylum seekers.
News & Media
He won first prize in 2010 in the live news photograph of the year category for his work documenting the aftermath of the 2010 earthquake in Haiti.
News & Media
In the leading category she is up against Jennifer Aniston for Cake, Reese Witherspoon for Wild, Felicity Jones for The Theory of Everything, and Rosamund Pike for Gone Girl – a film for which David Fincher (that emailgate star) has a best director nomination.
News & Media
The Observer's Richard Wachman won the reporter of the year category.
News & Media
Expert writing Tips
Best practice
Use "category" to clearly define groupings based on specific criteria, ensuring clarity and organization in your writing.
Common error
Avoid creating categories that are not mutually exclusive or have poorly defined boundaries. This can lead to confusion and inaccurate classification.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "category" is as a noun, representing a group or class of things sharing common characteristics. Ludwig shows numerous examples of its use in this way, consistent with its definition.
Frequent in
News & Media
59%
Formal & Business
17%
Science
8%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The term "category" is a very common noun used to group items based on shared characteristics. Ludwig AI confirms its grammatical correctness and frequent use across diverse contexts, especially in news and media. It serves the purpose of classifying and organizing information. When writing, ensure your categories are mutually exclusive to avoid confusion. Alternative terms include "type", "class", and "classification", offering flexibility in your word choice. "Category" remains a fundamental term for structuring information effectively.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
classification
Focuses on the act of arranging into groups.
type
Emphasizes a distinct form or kind.
class
Indicates a division within a system of ordering.
group
Highlights a collection of items with shared attributes.
genre
Specifically refers to a type of artistic work.
division
Suggests a separation into distinct parts.
set
Implies a well-defined collection of items.
sort
Indicates a specific kind or variety.
bracket
Often used to describe a range or level within a classification.
league
Implies a level of quality or status within a system.
FAQs
How can I use "category" in a sentence?
The word "category" is used to classify something into a group that has similar qualities. For example, "This book falls into the science fiction category."
What is another word for "category"?
You can use words like "type", "class", or "classification" as alternatives to "category" depending on the context.
Is it correct to say "categories" instead of "category"?
Yes, "categories" is the plural form of "category". Use "category" for singular items and "categories" for multiple groupings. For instance, "This item belongs to a specific category" versus "These items belong to different categories".
What's the difference between "category" and "classification"?
"Category" refers to a specific grouping, while "classification" is the act of assigning items to categories. So, classification is the process, and category is the result.
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