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
Since the advent of the transfer portal and the rise of name, image and likeness (NIL), there have been countless debates about how to create and adjust a system to establish guardrails when necessary.
—
Chantz Martin, FOXNews.com, 7 Nov. 2025
The second was a minimum viable product designed to secure private AI applications with runtime guardrails, enabling organizations to integrate AI confidently without the risk of unmanaged exposure — an approach now used across major global enterprises to safeguard their AI deployments at scale.
—Daniel Fusch, USA Today, 6 Nov. 2025
Others urge caution, saying more regulations and guardrails are necessary to protect patients in low- and middle-income countries.
—NPR, 6 Nov. 2025
By open-sourcing a similar capability, OpenAI is effectively giving developers the same kind of customizable guardrails that helped make Anthropic’s models so appealing.
—Beatrice Nolan, Fortune, 5 Nov. 2025
See All Example Sentences for guardrail
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Chantz Martin, FOXNews.com, 7 Nov. 2025
The second was a minimum viable product designed to secure private AI applications with runtime guardrails, enabling organizations to integrate AI confidently without the risk of unmanaged exposure — an approach now used across major global enterprises to safeguard their AI deployments at scale.
—Daniel Fusch, USA Today, 6 Nov. 2025
Others urge caution, saying more regulations and guardrails are necessary to protect patients in low- and middle-income countries.
—NPR, 6 Nov. 2025
By open-sourcing a similar capability, OpenAI is effectively giving developers the same kind of customizable guardrails that helped make Anthropic’s models so appealing.
—Beatrice Nolan, Fortune, 5 Nov. 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 10 Nov. 2025.
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guardrail
noun
guard·rail
ˈgär-ˌdrāl
: a protective railing placed along dangerous areas (as of a road)
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