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 Radiopharma’s precision promise runs into toxicity problems, China puts new guardrails around its biotech innovation engine, and Grail’s Galleri heads to an FDA advisory panel. Meghana Keshavan, STAT, 10 Aug. 2026 Continue reading … RULES LEFT BEHIND – Flock Safety cameras need constitutional guardrails before further deployment, Tennessee mayor argues. FOXNews.com, 10 Aug. 2026 Well, in 2017 its legislators enacted fiscal guardrails and stayed within them. Elona Vaisnys, Hartford Courant, 9 Aug. 2026 But their guardrails can also be removed, making AI’s powerful cyber and biological capabilities more accessible to bad actors. Tom Chivers, semafor.com, 9 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 20 Aug. 2026.

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