categorize
B2Formal / Neutral
Definition
Meaning
to put something into a group or class with similar things
To systematically identify and assign items to defined categories based on shared characteristics, often for organizational, analytical, or administrative purposes.
Linguistics
Semantic Notes
Implies a process of judgment or analysis based on established criteria. Often used in academic, scientific, and administrative contexts. Carries a sense of systematic organization rather than casual grouping.
Dialectal Variation
British vs American Usage
Differences
British English also commonly uses the spelling 'categorise'. The meaning and usage are identical.
Connotations
Identical in both varieties.
Frequency
Slightly more frequent in American English corpora, but common in both.
Vocabulary
Collocations
Grammar
Valency Patterns
categorize + noun (object)categorize + noun + as + noun/adjectivecategorize + noun + into + nounVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[No common idioms with 'categorize']”
Usage
Context Usage
Business
Used for market segmentation, customer types, or expense reporting (e.g., 'Categorize the clients by annual revenue').
Academic
Central to research methods, data analysis, and theoretical frameworks (e.g., 'The study categorizes responses into three main themes').
Everyday
Used for organizing tasks, household items, or personal interests (e.g., 'I categorized my books by genre').
Technical
Essential in computer science (data tagging, machine learning), library science, and biology.
Examples
By Part of Speech
verb
British English
- We need to categorise the survey data before analysis.
- The librarian will categorise the new acquisitions by subject.
American English
- The software helps you categorize your email automatically.
- How would you categorize this type of investment risk?
adverb
British English
- [No standard adverbial form in common use]
American English
- [No standard adverbial form in common use]
adjective
British English
- The categorised list made the information much clearer.
- A well-categorised archive saves hours of research time.
American English
- The categorized results are in the appendix.
- Use the categorized dropdown menu to filter the data.
Examples
By CEFR Level
- I categorise my clothes by colour.
- Can you categorise these animals: dog, cat, fish?
- The teacher asked us to categorize the words as nouns or verbs.
- My music app categorises songs by artist and genre.
- Researchers often categorize participants into control and experimental groups.
- It's overly simplistic to categorize people solely based on their political views.
- The new theory challenges the way scholars have traditionally categorised medieval literature.
- The algorithm uses machine learning to dynamically categorize user queries into intent-based clusters.
Learning
Memory Aids
Mnemonic
Think of a CATEGORY + EYES. You use your analytical 'eyes' to place things into the right CATEGORY.
Conceptual Metaphor
ORGANIZATION IS STRUCTURE (Putting things into mental boxes or filing cabinets).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation from 'категоризировать' which is a calque and sounds overly formal/anglicized in Russian. More natural equivalents are 'классифицировать', 'распределять по категориям', 'относить к категории'.
Common Mistakes
- Incorrect preposition: 'categorize in' instead of 'categorize into' or 'categorize as'.
- Spelling confusion between 'categorize' (US/Common) and 'categorise' (UK).
Practice
Quiz
Which sentence uses 'categorize' INCORRECTLY?
FAQ
Frequently Asked Questions
They are very close synonyms. 'Classify' can sometimes imply a more formal, scientific, or hierarchical system (like biological taxonomy), while 'categorize' is slightly more general and can be used for simpler, more practical groupings. In many contexts, they are interchangeable.
It is neutral to formal. It is perfectly appropriate in everyday speech when discussing organization, but its systematic nature makes it common in academic, business, and technical writing. Simpler alternatives for casual conversation are 'sort', 'group', or 'put into groups'.
The most common are 'as' (categorize something as a type) and 'into' (categorize something into a group/class). 'Under' is also possible (categorize under a heading). Avoid using 'in' by itself.
Yes, when it implies oversimplification, stereotyping, or forcing complex things into rigid boxes. Phrases like 'don't categorize me' or 'resist being categorized' reflect this negative sense, suggesting a loss of individual nuance.
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