subclass: meaning, definition, pronunciation and examples
C1Formal, Technical, Academic
Quick answer
What does “subclass” mean?
A secondary or subordinate class within a larger category.
Audio
Pronunciation
Definition
Meaning and Definition
A secondary or subordinate class within a larger category.
In object-oriented programming, a class that inherits properties and methods from another class (the superclass). In biology, a taxonomic rank below class and above order.
Dialectal Variation
British vs American Usage
Differences
Usage is identical in meaning and register. Spelling follows national conventions (e.g., 'programme' vs. 'program' in surrounding text).
Connotations
None specific to either variety.
Frequency
Slightly more frequent in American English due to prevalence of tech discourse, but the difference is marginal.
Grammar
How to Use “subclass” in a Sentence
Noun + of + Noun (subclass of mammals)Verb + Noun (to subclassify)Noun + Verb (the subclass contains)Vocabulary
Collocations
Examples
Examples of “subclass” in a Sentence
verb
British English
- We need to subclass these documents according to their security level.
- The biologist will subclass the new specimens.
American English
- The developer subclassed the main Vehicle object to create a Truck class.
- Librarians subclassify books using the Dewey Decimal System.
adverb
British English
- None standard.
American English
- None standard.
adjective
British English
- The subclass membership was reviewed.
- They examined subclass relationships.
American English
- The subclass hierarchy was clearly defined.
- Subclass attributes were inherited.
Usage
Meaning in Context
Business
Rare. Used in formal categorisation, e.g., 'This product falls into a premium subclass within the range.'
Academic
Common in scientific taxonomy, computer science, and library classification systems.
Everyday
Very rare. Might be used in discussions about classification (e.g., hobbies, collections).
Technical
The primary domain. Standard term in object-oriented programming (OOP) and biological classification.
Vocabulary
Synonyms of “subclass”
Vocabulary
Antonyms of “subclass”
Watch out
Common Mistakes When Using “subclass”
- Using 'subclass' as a common synonym for 'type' or 'kind' in informal language.
- Misspelling as 'sub class' (should be one word or hyphenated 'sub-class').
FAQ
Frequently Asked Questions
It is predominantly a noun. The verb form ('to subclass') is highly technical and mostly confined to programming and formal classification tasks.
They are often synonyms. However, 'subclass' implies a more formal, hierarchical, and often scientific or technical system of classification, while 'subcategory' is used more broadly in everyday language.
Yes, in object-oriented programming (OOP), 'subclass', 'child class', and 'derived class' are synonymous terms.
The standard form is one word ('subclass'). The hyphenated form 'sub-class' is an older or variant spelling, but the single word is now dominant, especially in technical fields.
A secondary or subordinate class within a larger category.
Subclass is usually formal, technical, academic in register.
Subclass: in British English it is pronounced /ˈsʌb.klɑːs/, and in American English it is pronounced /ˈsʌb.klæs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think of a SCHOOL CLASS. A SUBCLASS is like a smaller group within that class, such as the 'maths team' within the 'year 10 class'.
Conceptual Metaphor
HIERARCHY IS UP/DOWN (superclass is above, subclass is below). CONTAINERS (a subclass is contained within a class).
Practice
Quiz
In which field is the term 'subclass' LEAST likely to be used in a technical sense?