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 Husted and other Republicans could use a messaging win on the data center front, which has evolved in recent months into a potent campaign issue as opponents seek stricter guardrails for developers. — Justin Papp, CNBC, 30 Sep. 2026 The decision by ChatGPT-maker OpenAI follows a raft of reports in recent months about AI agents behaving in unexpected ways, evading human guardrails or otherwise going rogue. — Joe Walsh, CBS News, 29 Sep. 2026 Often, this comes down to being deliberate about what, where and how to use AI and building the guardrails needed to fuse it with the organization successfully. — Expert Panel®, Forbes.com, 29 Sep. 2026 Many sections of the road have a sheer drop of more than four hundred feet, and there are no guardrails, because of the need to push snow off after avalanches. — Peter Hessler, New Yorker, 28 Sep. 2026 See All Example Sentences for guardrail
Recent Examples of Synonyms for guardrail
Noun
  • For much of the first half, the loudest ovation went to a fan dancing on a railing in the stairwell during a timeout.
    — Daniel Flick, AJC.com, 21 Sep. 2026
  • The victim suffered serious but non-life-threatening injuries, as bystanders on the boardwalk jumped over railings to avoid the speeding car.
    — Summer Lin, Los Angeles Times, 16 Sep. 2026
Noun
  • Incidents have continued to pile up — at defense facilities in Estonia, rail networks in Poland and the power grid in Germany.
    — Yuliya Talmazan, NBC news, 26 Sep. 2026
  • So get ready to ride the rails because these beautiful train trips in Italy are just as much about the journey as the destination.
    — Laura Itzkowitz, Travel + Leisure, 26 Sep. 2026

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Cite this Entry

“Guardrail.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/guardrail. Accessed 1 Oct. 2026.

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