Meaning : Any condition that makes it difficult to make progress or to achieve an objective.
Example :
Intolerance is a barrier to understanding.
Synonyms : barrier
Meaning : A barrier set up by police to stop traffic on a street or road in order to catch a fugitive or inspect traffic etc..
Synonyms : barricade
Roadblock ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Roadblock ka matlab kya hota hai?