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English definition of “roadblock”

roadblock

noun [C]     /ˈrəʊd.blɒk/ US  /ˈroʊd.blɑːk/
a temporary structure put across a road to stop traffic: Police put up/set up roadblocks on all roads out of the town in an effort to catch the bombers.Lights, signs and markings on roads
(Definition of roadblock noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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