The meaning of BARRIER is something material that blocks or is intended to block passage. How to use barrier in a sentence.

BARRIER definition: anything built or serving to bar passage, as a railing, fence, or the like. See examples of barrier used in a sentence.

BARRIER meaning: 1. a long pole, fence, wall, or natural feature, such as a mountain or sea, that stops people from…. Learn more.

Barriers are walls, either physical or metaphorical. They can block movement — the Great Wall of China was a barrier to block invading forces from entering. A window shade is a light barrier. …

A barrier is an object or layer that physically prevents something from moving from one place to another.

1. anything built or serving to bar passage, as a railing, fence, or the like. 2. any natural bar or obstacle: a mountain barrier. 3. anything that obstructs progress, access, etc.: trade barriers. …

anything built or serving to bar passage, as a railing, fence, or the like: People may pass through the barrier only when their train is announced. any natural bar or obstacle: a mountain barrier.

There are 17 meanings listed in OED's entry for the noun barrier, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Dec 7, 2025 · The bus went through a railway barrier and was hit by a train. The bomber had passed through one checkpoint before blowing himself up at a second barrier.

Barrier definition: A material formation or structure, such as a mountain range or wall, that prevents passage or access.