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WordNet-Online
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Noun roadblock has 2 senses
- barrier, roadblock - any condition that makes it difficult to make progress or to achieve an objective; "intolerance is a barrier to understanding"
--1 is a kind of obstacle, obstruction
--1 has particulars: ideological barrier; language barrier
- roadblock, barricade - a barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc.
--2 is a kind of barrier
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