"Arlington County" meaning in English

{
  "etymology_text": "The name goes back to Henry Bennet, 1st Earl of Arlington",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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        {
          "kind": "place",
          "langcode": "en",
          "name": "Counties of Virginia, USA",
          "orig": "en:Counties of Virginia, USA",
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          "kind": "place",
          "langcode": "en",
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      ],
      "glosses": [
        "The smallest of the 95 counties in Virginia, United States. It is adjacent to Washington, D.C.. and coterminous with the census-designated place of Arlington."
      ],
      "id": "en-Arlington_County-en-name-iSgQcXwg",
      "links": [
        [
          "Virginia",
          "Virginia#English"
        ],
        [
          "United States",
          "United States#English"
        ],
        [
          "Washington, D.C.",
          "Washington, D.C."
        ],
        [
          "coterminous",
          "coterminous"
        ],
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          "census-designated place",
          "census-designated place"
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          "Arlington",
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      ],
      "wikipedia": [
        "Arlington County",
        "Henry Bennet, 1st Earl of Arlington"
      ]
    }
  ],
  "word": "Arlington County"
}

{
  "etymology_text": "The name goes back to Henry Bennet, 1st Earl of Arlington",
  "head_templates": [
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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        "en:Counties of Virginia, USA",
        "en:Places in Virginia, USA",
        "en:Places in the United States"
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      "glosses": [
        "The smallest of the 95 counties in Virginia, United States. It is adjacent to Washington, D.C.. and coterminous with the census-designated place of Arlington."
      ],
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          "coterminous",
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  ],
  "word": "Arlington County"
}