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

Cultural/social barriers have made it hard for women to enter many professions. He argues that regulations should not be viewed as barriers to progress. The lecture was about finding ways to …

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. 4. a limit or …

barrier (to sth) In an ideal world, there would be no barriers to the free movement of people between countries.

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. Failing English …

Traffic barrier with a pedestrian guardrail behind it Traffic barriers (known in North America as guardrails or guard rails, [1] in Britain as crash barriers, [2] and in auto racing as Armco barriers[3]) keep …

something that obstructs or limits: trade barriers. bar•ri•er (bar′ ē ər), n. 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 …

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

Definition of barrier noun from the Oxford Advanced Learner's Dictionary. an object like a fence that prevents people from moving forward from one place to another. The crowd had to stand behind …

Dec 7, 2025 · (physiology) A separation between two areas of the body where specialized cells allow the entry of certain substances but prevent the entry of others. (historical) The lists in a tournament. …