guardrail
/ˈɡɑɹdˌɹeɪl/ noun
Forms guardrails guard rail
- noun A rail set alongside a dangerous place as a barrier, to improve safety.
- noun (Canada, US) A strengthened barrier installed on the sides of a (usually major) road to keep vehicles on the highway and reduce the risk and/or impact of crashes.
- noun (figurative, by extension) Any barrier designed to prevent accidents or mistakes.
- noun (rail transport) Synonym of check rail.
Synonyms
guard railing guide board guide rail side rail crash barrier traffic barrier check rail safety rail
Etymology
From guard + rail.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “guardrail”, CC BY-SA 4.0. Details