# guardrail

> English word · Noun · IPA /ˈɡɑɹdˌɹeɪl/ · frequency rank #56,159

## Definitions
1. A rail set alongside a dangerous place as a barrier, to improve safety.
2. A rail set alongside a dangerous place as a barrier, to improve safety.
3. Any barrier designed to prevent accidents or mistakes.
4. Synonym of check rail.

## Etymology
From guard + rail.

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