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 Each answer provided a deeper view into the guardrail and its limits. Dan Goodin, ArsTechnica, 18 Aug. 2026 According to Wolff, the system includes guardrails intended to keep client data separated and support the security and reliability of the platform. Ethan M. Stone, USA Today, 18 Aug. 2026 And the firm has been a key voice on AI policy, successfully pushing the administration to remove many safety guardrails on the use of the technology, Bloomberg News has reported. Josh Sisco, Fortune, 17 Aug. 2026 Rivian is trying to catch up to — and then surpass — Tesla’s FSD (Supervised) capabilities, but with additional safety guardrails that the Elon Musk company doesn’t use. Michael Wayland, CNBC, 15 Aug. 2026 See All Example Sentences for guardrail
Recent Examples of Synonyms for guardrail
Noun
  • Paper wasps build nests under eaves, benches and fence railings and will sting if disturbed.
    Tim Johnson, Chicago Tribune, 15 Aug. 2026
  • Meanwhile, a Lowcountry cottage might have beadboard detailing on the ceiling, along with open railings and a haint blue ceiling.
    Heather Bien, Southern Living, 13 Aug. 2026
Noun
  • The office's own work plan called for reviewing the rail authority's change-order process by July 2026 — including a $500 million-plus construction change order settlement.
    Julie Watts, CBS News, 18 Aug. 2026
  • That could include autonomous vehicles for shuttling materials and parts between workstations or robotic arms moving on rails along the length of a production line.
    Jeremy Hsu, ArsTechnica, 17 Aug. 2026

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Cite this Entry

“Guardrail.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/guardrail. Accessed 23 Aug. 2026.

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