guardrail

noun

guard·​rail ˈgärd-ˌrāl How to pronounce guardrail (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Fire officials said one car rolled over and went through a guardrail causing heavy damage. Justin Muszynski, Hartford Courant, 12 Feb. 2025 Finance/technology Trump revoked former President Biden's artificial intelligence guardrails and has since signed executive orders aimed at bolstering the country's competitiveness in AI and tech. Avery Lotz, Axios, 11 Feb. 2025 Their back-and-forth comes as political and business leaders are meeting at the Artificial Intelligence Action Summit today in Paris to discuss how to create effective guardrails for AI without stifling innovation. Alexandra Banner, CNN, 11 Feb. 2025 Enacted in 1946 on the heels of the New Deal's expansion of governmental administration, the Administrative Procedure Act (APA) became both the foundation and a guardrail for all regulatory actions coming from the executive branch. Christina Gatti, NPR, 8 Feb. 2025 See all Example Sentences for guardrail 

Word History

First Known Use

1860, in the meaning defined above

Time Traveler
The first known use of guardrail was in 1860

Dictionary Entries Near guardrail

Cite this Entry

“Guardrail.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/guardrail. Accessed 21 Feb. 2025.

Kids Definition

guardrail

noun
guard·​rail ˈgär-ˌdrāl How to pronounce guardrail (audio)
: a protective railing placed along dangerous areas (as of a road)
Last Updated: - Updated example sentences
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