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English definition of “roadblock”

roadblock

noun [C]  /ˈroʊdˌblɑk/ us  
a temporary structure put across a road to stop traffic, esp. to try to stop illegal activity: a police roadblock fig.A roadblock can also be anything that stops progress: There have been several roadblocks in the peace process.
(Definition of roadblock from the Cambridge Academic Content Dictionary © Cambridge University Press)
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