"cố đô" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "故都"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "故",
        "2": "old",
        "3": "都",
        "4": "capital"
      },
      "expansion": "Sino-Vietnamese word from 故都, composed of 故 (“old”) and 都 (“capital”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 故都, composed of 故 (“old”) and 都 (“capital”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "cố đô",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "cố đô",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "vi",
          "name": "National capitals",
          "orig": "vi:National capitals",
          "parents": [
            "Capital cities",
            "Cities",
            "Polities",
            "Places",
            "Names",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "the former capital of Hue",
          "text": "cố đô Huế",
          "type": "example"
        }
      ],
      "glosses": [
        "a country's former capital city"
      ],
      "id": "en-cố_đô-vi-noun-RoYXbjQm",
      "links": [
        [
          "capital city",
          "capital city#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ko˧˦ ʔɗo˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[kow˨˩˦ ʔɗow˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[kow˦˥ ʔɗow˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "cố đô"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "故都"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "故",
        "2": "old",
        "3": "都",
        "4": "capital"
      },
      "expansion": "Sino-Vietnamese word from 故都, composed of 故 (“old”) and 都 (“capital”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 故都, composed of 故 (“old”) and 都 (“capital”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "cố đô",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "cố đô",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese terms with IPA pronunciation",
        "Vietnamese terms with usage examples",
        "vi:National capitals"
      ],
      "examples": [
        {
          "english": "the former capital of Hue",
          "text": "cố đô Huế",
          "type": "example"
        }
      ],
      "glosses": [
        "a country's former capital city"
      ],
      "links": [
        [
          "capital city",
          "capital city#English"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ko˧˦ ʔɗo˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[kow˨˩˦ ʔɗow˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[kow˦˥ ʔɗow˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "cố đô"
}