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Wikipedia definition
1. Barrier islandBarrier Islands, a coastal landform and a type of barrier system, are relatively narrow strips of sand that are parallel to the mainland coast. They usually occur in chains, consisting of anything from a few islands to more than a dozen. Excepting the tidal inlets that separate the islands, a barrier chain may extend uninterrupted for over a hundred kilometers, the longest and widest being Padre Island.
Read “Barrier island” on English Wikipedia
Read “バリアー島” on Japanese Wikipedia
Read “Barrier island” on DBpedia

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