# subtype

/ˈsəbˌtaɪp/ (US) · /sˈʌbtaɪp/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/subtype
Updated: 2026-05-25

## Definition

a smaller, more specific group within a larger category. In programming, it is a type that is based on another type but has more specific rules.

For teachers: a distinct category or variety within a larger class or group. In object-oriented programming, it refers to a type that is a specific version of a more general type, often inheriting its properties and methods.

## Examples

- The software uses a specific subtype of the main data type.
- In the database, the 'vehicle' table has several subtypes, including car, truck, and motorcycle.
- The language allows for a subtype to override the behavior of its parent type, providing a more specialized implementation while maintaining the core interface expected by the rest of the system.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.