# edge case

> English word · Noun

## Definitions
1. A problem or situation that occurs only at an extreme (maximum or minimum) operating parameter or under other unusual operating conditions.
2. Any unexpected input or user behaviour.

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