"Flood Rock" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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    {
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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        {
          "kind": "place",
          "langcode": "en",
          "name": "Islands",
          "orig": "en:Islands",
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          "orig": "en:Places in the United States",
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      "glosses": [
        "An islet and reef in New York City, New York State, United States in Hell Gate, East River, New York Harbor, at the narrow end of Long Island Sound, A former rocky islet and rock reef that was destroyed in 1885 to clear the channel of this navigation hazard, that was mostly submerged at high tide, becoming a 9-acre island at low tide."
      ],
      "id": "en-Flood_Rock-en-name-HHrN2Y2h",
      "links": [
        [
          "New York City",
          "New York City#English"
        ],
        [
          "New York State",
          "New York State#English"
        ],
        [
          "United States",
          "United States#English"
        ],
        [
          "Hell Gate",
          "Hell Gate#English"
        ],
        [
          "East River",
          "East River#English"
        ],
        [
          "New York Harbor",
          "New York Harbor#English"
        ],
        [
          "Long Island Sound",
          "Long Island Sound#English"
        ]
      ],
      "raw_glosses": [
        "(historical) An islet and reef in New York City, New York State, United States in Hell Gate, East River, New York Harbor, at the narrow end of Long Island Sound, A former rocky islet and rock reef that was destroyed in 1885 to clear the channel of this navigation hazard, that was mostly submerged at high tide, becoming a 9-acre island at low tide."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "Flood Rock"
}

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      "expansion": "Flood Rock",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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        "English terms with historical senses",
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        "en:Islands",
        "en:Places in the United States"
      ],
      "glosses": [
        "An islet and reef in New York City, New York State, United States in Hell Gate, East River, New York Harbor, at the narrow end of Long Island Sound, A former rocky islet and rock reef that was destroyed in 1885 to clear the channel of this navigation hazard, that was mostly submerged at high tide, becoming a 9-acre island at low tide."
      ],
      "links": [
        [
          "New York City",
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        ],
        [
          "New York State",
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        ],
        [
          "United States",
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        ],
        [
          "Hell Gate",
          "Hell Gate#English"
        ],
        [
          "East River",
          "East River#English"
        ],
        [
          "New York Harbor",
          "New York Harbor#English"
        ],
        [
          "Long Island Sound",
          "Long Island Sound#English"
        ]
      ],
      "raw_glosses": [
        "(historical) An islet and reef in New York City, New York State, United States in Hell Gate, East River, New York Harbor, at the narrow end of Long Island Sound, A former rocky islet and rock reef that was destroyed in 1885 to clear the channel of this navigation hazard, that was mostly submerged at high tide, becoming a 9-acre island at low tide."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "Flood Rock"
}