Guardrails, also known as safety barriers, are commonly used to prevent accidents and ensure safety on roads, highways, and construction sites. Some synonyms for guardrails include barricades, fences, railings, barriers, and partitions. These structures serve as a protective barrier to prevent people or objects from entering forbidden areas or falling from great heights. In the context of digital security, the term guardrails is also used to refer to automated checks that prevent engineering errors. Ultimately, whether it's physical or digital, guardrails play a crucial role in maintaining safety and security in our daily lives.