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 As such, the sort of innovation that this category needs most is not better image recognition AI or more intuitive modes of input, but stronger guardrails against misuse of their recording capabilities. Abhimanyu Ghoshal, New Atlas, 3 Aug. 2026 Realbotix says those guardrails are designed to block inappropriate responses and reduce unreliable outputs. Jesse Watson, FOXNews.com, 3 Aug. 2026 Anthropic’s guardrail was a sentence in a prompt asserting the internet was not there. Sandy Carter, Forbes.com, 2 Aug. 2026 The guardrails monitor the spacecraft’s condition and the neural network’s outputs, intervening when predefined safety limits are approached. Atharva Gosavi, Interesting Engineering, 1 Aug. 2026 See All Example Sentences for guardrail
Recent Examples of Synonyms for guardrail
Noun
  • Usher’s taste for dark walls continued in this dwelling, where the double-height entryway featured numerous contemporary artworks highlighted against jet-black walls and a grand staircase with wrought-iron railing.
    Joyce Chen, Architectural Digest, 4 Aug. 2026
  • On a recent afternoon, two technicians in heat-resistant hazmat suits were operating an apparatus of cylinders, tubes, funnels and control panels set up on a platform with bright yellow railings.
    Didi Tang, Fortune, 3 Aug. 2026
Noun
  • The bathrooms are large and bright with wide vanities stocked with Diptyque toiletry products in pump bottles and towels hanging on heated rails.
    Condé Nast, Condé Nast Traveler, 4 Aug. 2026
  • The railway manias left behind functioning rail networks, and the dot-com bubble left behind server and network infrastructure that made the following two decades of internet companies cheap to build.
    Michael Wee, Forbes.com, 3 Aug. 2026

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Cite this Entry

“Guardrail.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/guardrail. Accessed 10 Aug. 2026.

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