"Alexander Island" meaning in English

{
  "etymology_text": "Named after Tsar Alexander I of Russia.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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      ],
      "glosses": [
        "The largest island of Antarctica."
      ],
      "id": "en-Alexander_Island-en-name-Lxa2Sy-L",
      "links": [
        [
          "Antarctica",
          "Antarctica"
        ]
      ],
      "synonyms": [
        {
          "word": "Alexander I Island"
        }
      ]
    }
  ],
  "word": "Alexander Island"
}

{
  "etymology_text": "Named after Tsar Alexander I of Russia.",
  "head_templates": [
    {
      "args": {
        "head": "Alexander Island"
      },
      "expansion": "Alexander Island",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns"
      ],
      "glosses": [
        "The largest island of Antarctica."
      ],
      "links": [
        [
          "Antarctica",
          "Antarctica"
        ]
      ],
      "synonyms": [
        {
          "word": "Alexander I Island"
        }
      ]
    }
  ],
  "word": "Alexander Island"
}