barrier as in a structure or object that impedes free movement
barrier as in any condition that makes it difficult to make progress or to achieve an objective
- "intolerance is a barrier to understanding"
Synonyms
- roadblockany condition that makes it difficult to make progress or to achieve an objective; a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.
barrier as in anything serving to maintain separation by obstructing vision or access