Guardrail: meaning, definitions and examples

A guardrail is typically used alongside roads, bridges, or highways to prevent vehicles from veering off the path. It offers protection and safety for motorists.

• The car skidded on the icy road but was stopped by the guardrail.

The term 'barrier' is more general and can be used in various contexts to describe anything that blocks or separates. It is not limited to roads and can apply to physical or metaphorical obstructions.

• The language barrier made it difficult for them to communicate.
• The construction site was surrounded by a tall barrier.

A railing is a protective barrier, usually made of bars or a continuous structure, meant to prevent people from falling or to provide support. It is often found on balconies, stairways, and terraces.

• He leaned on the balcony railing to get a better view of the city.

A crash barrier specifically refers to a safety feature on roads intended to minimize the impact of vehicle crashes. It is often found on highways and dangerous curves.

• The crash barrier absorbed the impact, saving the passengers from serious harm.