Definitions from Wiktionary (guardrail)

▸ 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.
▸ Also see guardrail

---

▸ Words similar to guardrails
▸ Usage examples for guardrails

▸ Idioms related to guardrails
▸ Wikipedia articles (New!)
▸ Popular adjectives describing guardrails
▸ Words that often appear near guardrails
▸ Rhymes of guardrails

▸ Invented words related to guardrails