# use case

> English word · Noun

## Definitions
1. A potential scenario in which a system receives an external request (such as user input) and responds to it.
2. A usage scenario for a piece of software; often used in the plural to suggest situations where a piece of software may be useful.
3. A usage scenario for a product, such as a piece of equipment or a tool.

## Etymology
From use + case.

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