barrier
(noun)
noun
1. a structure or object that impedes free movement
Definition categories: man–made, impediment, impedimenta, obstructer, obstruction, obstructor
2. any condition that makes it difficult to make progress or to achieve an objective
- intolerance is a barrier to understanding
Similar word(s): roadblock
Definition categories: thought, obstacle, obstruction
3. anything serving to maintain separation by obstructing vision or access