1. [ noun ] a structure or object that impedes free movement
Related terms: obstruction fence railing bannister grate breakwater roadblock dam barricade hurdle revetment fender starting_gate movable_barrier crash_barrier bulwarks
2. [ noun ] any condition that makes it difficult to make progress or to achieve an objective
Synonyms: roadblock

"intolerance is a barrier to understanding"

Related terms: obstacle language_barrier ideological_barrier
3. [ noun ] anything serving to maintain separation by obstructing vision or access
Related terms: mechanism curtain blood-brain_barrier bar
4. [ noun ] Last name, frequency rank in the U.S. is 6936
Similar spelling:   Barriere