"Martha's Vineyard" meaning in English

{
  "etymology_text": "This was originally the name given to a smaller island to the south by the English explorer Bartholomew Gosnold, who sailed to the island in 1602. The island is thought to have been named after Gosnold's mother-in-law or his daughter, both named Martha.",
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      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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          "name": "English entries with incorrect language header",
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        {
          "kind": "place",
          "langcode": "en",
          "name": "Islands",
          "orig": "en:Islands",
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            "Terms by semantic function",
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        {
          "kind": "place",
          "langcode": "en",
          "name": "Places in Massachusetts, USA",
          "orig": "en:Places in Massachusetts, USA",
          "parents": [
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            "Names",
            "All topics",
            "Proper nouns",
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        {
          "kind": "place",
          "langcode": "en",
          "name": "Places in the United States",
          "orig": "en:Places in the United States",
          "parents": [
            "Places",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "Martha's Vineyard Sign Language"
        }
      ],
      "glosses": [
        "An island in Dukes County, Massachusetts, famous for once being home to one of the earliest known deaf communities."
      ],
      "id": "en-Martha's_Vineyard-en-name-SCsEdDLy",
      "links": [
        [
          "Dukes County",
          "Dukes County#English"
        ],
        [
          "Massachusetts",
          "Massachusetts#English"
        ]
      ]
    }
  ],
  "word": "Martha's Vineyard"
}

{
  "derived": [
    {
      "word": "Martha's Vineyard Sign Language"
    }
  ],
  "etymology_text": "This was originally the name given to a smaller island to the south by the English explorer Bartholomew Gosnold, who sailed to the island in 1602. The island is thought to have been named after Gosnold's mother-in-law or his daughter, both named Martha.",
  "head_templates": [
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      },
      "expansion": "Martha's Vineyard",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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        "English uncountable nouns",
        "en:Islands",
        "en:Places in Massachusetts, USA",
        "en:Places in the United States"
      ],
      "glosses": [
        "An island in Dukes County, Massachusetts, famous for once being home to one of the earliest known deaf communities."
      ],
      "links": [
        [
          "Dukes County",
          "Dukes County#English"
        ],
        [
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          "Massachusetts#English"
        ]
      ]
    }
  ],
  "word": "Martha's Vineyard"
}