guardrail
guardrail Lexical Profile
guardrail Game Scores & Validity
• noun
A strong protective barrier or railing placed along the edge of a highway, bridge, staircase, or elevated platform to prevent vehicles or people from falling off or veering into dangerous areas.
"The heavy steel guardrail prevented the skidding car from going over the steep embankment."
A rule, policy, or technical constraint designed to keep a system, organization, or artificial intelligence operating within safe, ethical, or acceptable boundaries.
"The software engineers implemented strict guardrails to ensure the automated system would not process sensitive personal data."
A secondary rail mounted parallel and close to the inner side of a main railway track on sharp curves, switches, or bridges to keep train wheels from derailing.
"Inspectors checked the guardrail along the curved trestle bridge to make sure the train's wheels remained properly aligned."
• Nearby Words
Usage Trend
Historical frequency of usage in published text.