Definition of guardrail
: a railing guarding usually against danger; especially : a barrier placed along the edge of a highway at dangerous points
Examples of guardrail in a sentence
<the car ran off the road, but fortunately only hit the guardrail>
First Known Use of guardrail
GUARDRAIL Defined for English Language Learners
Definition of guardrail for English Language Learners
: a strong metal bar along the side of a road that prevents vehicles from driving off the road
: a strong bar or fence that prevents people from falling off a deck, bridge, etc.
Seen and Heard
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