# fatal system error

> English word · Noun

## Definitions
1. An error that occurs when an operating system halts, because it has reached a condition where it can no longer operate safely.

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