guardrail
noun
guard·rail
ˈgärd-ˌrāl 
: 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
Recent Examples on the Web
The YouTuber repeated the request several times, aiming to prove that the robot’s safety guardrails would remain intact, reports Money Control.
—
Jijo Malayil, Interesting Engineering, 12 Dec. 2025
If anything, this should be a reminder that the rush toward AI adoption needs stronger policy guardrails.
—Kurt Knutsson, FOXNews.com, 12 Dec. 2025
First, companies need systems that provide confidence that agents are operating within policy guardrails.
—Amanda Gerut, Fortune, 11 Dec. 2025
In all three crashes, police noted the guardrail was either already mangled or down.
—Liz Crawford, CBS News, 11 Dec. 2025
See All Example Sentences for guardrail
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Jijo Malayil, Interesting Engineering, 12 Dec. 2025
If anything, this should be a reminder that the rush toward AI adoption needs stronger policy guardrails.
—Kurt Knutsson, FOXNews.com, 12 Dec. 2025
First, companies need systems that provide confidence that agents are operating within policy guardrails.
—Amanda Gerut, Fortune, 11 Dec. 2025
In all three crashes, police noted the guardrail was either already mangled or down.
—Liz Crawford, CBS News, 11 Dec. 2025
See All Example Sentences for guardrail
Cite this Entry
“Guardrail.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guardrail. Accessed 19 Dec. 2025.
Copy CitationKids Definition
guardrail
noun
guard·rail
ˈgär-ˌdrāl
: a protective railing placed along dangerous areas (as of a road)
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