# subcategory

> English word · Noun · frequency rank #61,839

## Definitions
1. With respect to a given category; a narrower category.
2. A subclass of a category which is itself a category, whose arrows are a restriction of the arrows of the parent category, and whose composition rule is a restriction of the parent category's.

## Etymology
From sub- + category.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/subcategory