Definition of guardrailnext
as in railing
a protective barrier consisting of a horizontal bar and its supports the car ran off the road, but fortunately only hit the guardrail

Synonyms & Similar Words

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Example Sentences

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.
Recent Examples of guardrail Prior to the race, Bores, a former tech industry employee, had coauthored and successfully passed the high-profile RAISE Act, which had implemented guardrails and safety requirements on frontier AI companies; a version of his bill was signed into state law last year. Tina Nguyen, The Verge, 24 June 2026 Lawmakers passed a new law in 2025 that put additional guardrails on forensic testing in Colorado and opened up a specific legal path for people impacted by flawed testing to seek post-conviction relief in court. Shelly Bradbury, Denver Post, 23 June 2026 Leading the Future supports lighter guardrails around the burgeoning AI industry than Public First Action does. Emily Wilkins, CNBC, 23 June 2026 The same multiple legal guardrails aren’t present in extended custody battles. Sun Sentinel Editorial Board, Sun Sentinel, 10 June 2026 See All Example Sentences for guardrail
Recent Examples of Synonyms for guardrail
Noun
  • Neusch saw a couple of the house’s fire-andys roll along the balcony, their extinguisher nozzles deployed over the railings, pumping clouds of viscous yellow retardant foam into the atrium.
    Jeff Spry, Space.com, 26 June 2026
  • This 1889 Second Empire–style Victorian in the Gold Coast has a spacious roof terrace with a wrought-iron decorative railing, space for alfresco dining and lounging, and lake views.
    The Week US, TheWeek, 22 June 2026
Noun
  • The heat also worsened damage to infrastructure, with the concrete surface on countless highways breaking up, and a weekend warning by national rail operator Deutsche Bahn to avoid all unnecessary train travel.
    ABC News, ABC News, 28 June 2026
  • Story’s time in Boston has been marked by setbacks, and this season has been the latest to go off the rails.
    Mac Cerullo, Hartford Courant, 28 June 2026

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Cite this Entry

“Guardrail.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/guardrail. Accessed 29 Jun. 2026.

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