[{"Bold_text": "noun", "List Items": ["anything built or serving to bar passage, as a railing, fence, or the like:People may pass through the barrier only when their train is announced.Synonyms: impediment , hindrance , obstruction , wall , palisade", "any natural bar or obstacle:a mountain barrier.Synonyms: impediment , hindrance , obstruction", "anything that restrains or obstructs progress, access, etc.:a trade barrier.Synonyms: impediment , hindrance , obstruction", "a limit or boundary of any kind:the barriers of caste.", "Physical Geography.an Antarctic ice shelf or ice front.", "barrier beach barrier beach.", "barriers,History/Historical.the palisade or railing surrounding the ground where tourneys and jousts were carried on.", "Archaic.a fortress or stockade."]}]