"二重國籍" meaning in Japanese

{
  "forms": [
    {
      "form": "二重國籍",
      "ruby": [
        [
          "二",
          "に"
        ],
        [
          "重",
          "じゅう"
        ],
        [
          "國",
          "こく"
        ],
        [
          "籍",
          "せき"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nijū kokuseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "nidyuu kokuseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "にぢゆうこくせき",
      "roman": "nidyuu kokuseki",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "にじゅう こくせき",
        "hist1": "にぢゆう こくせき"
      },
      "expansion": "二(に)重(じゅう)國(こく)籍(せき) • (nijū kokuseki) ^(←にぢゆうこくせき (nidyuu kokuseki)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese kyūjitai spellings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "dual citizenship",
          "word": "二重国籍"
        }
      ],
      "glosses": [
        "Kyūjitai form of 二重国籍 (“dual citizenship”)"
      ],
      "id": "en-二重國籍-ja-noun-O~v~fSRB",
      "links": [
        [
          "Kyūjitai",
          "kyūjitai"
        ],
        [
          "二重国籍",
          "二重国籍#Japanese"
        ],
        [
          "dual citizenship",
          "dual citizenship"
        ]
      ],
      "tags": [
        "form-of",
        "kyūjitai"
      ]
    }
  ],
  "word": "二重國籍"
}

{
  "forms": [
    {
      "form": "二重國籍",
      "ruby": [
        [
          "二",
          "に"
        ],
        [
          "重",
          "じゅう"
        ],
        [
          "國",
          "こく"
        ],
        [
          "籍",
          "せき"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nijū kokuseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "nidyuu kokuseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "にぢゆうこくせき",
      "roman": "nidyuu kokuseki",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "にじゅう こくせき",
        "hist1": "にぢゆう こくせき"
      },
      "expansion": "二(に)重(じゅう)國(こく)籍(せき) • (nijū kokuseki) ^(←にぢゆうこくせき (nidyuu kokuseki)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese kyūjitai spellings",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms historically spelled with ぢ",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with jinmeiyō kanji",
        "Japanese terms spelled with secondary school kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "dual citizenship",
          "word": "二重国籍"
        }
      ],
      "glosses": [
        "Kyūjitai form of 二重国籍 (“dual citizenship”)"
      ],
      "links": [
        [
          "Kyūjitai",
          "kyūjitai"
        ],
        [
          "二重国籍",
          "二重国籍#Japanese"
        ],
        [
          "dual citizenship",
          "dual citizenship"
        ]
      ],
      "tags": [
        "form-of",
        "kyūjitai"
      ]
    }
  ],
  "word": "二重國籍"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "二重國籍"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "二重國籍",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "二重國籍"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "二重國籍",
  "trace": ""
}