"Cựu Đường thư" meaning in Vietnamese

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  "etymology_text": "Sino-Vietnamese word from 舊唐書.",
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        "head": "Cựu Đường thư",
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      "expansion": "Cựu Đường thư",
      "name": "head"
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    {
      "args": {
        "head": "Cựu Đường thư"
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      "expansion": "Cựu Đường thư",
      "name": "vi-proper noun"
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  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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          "langcode": "vi",
          "name": "Books",
          "orig": "vi:Books",
          "parents": [
            "Literature",
            "Mass media",
            "Culture",
            "Entertainment",
            "Writing",
            "Media",
            "Society",
            "Human behaviour",
            "Language",
            "Communication",
            "All topics",
            "Human",
            "Fundamental"
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          "source": "w"
        },
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          "langcode": "vi",
          "name": "History",
          "orig": "vi:History",
          "parents": [
            "All topics",
            "Fundamental"
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          "source": "w"
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      ],
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        "Old Book of Tang (history of the Tang dynasty completed in A.D. 945)"
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      "id": "en-Cựu_Đường_thư-vi-name-UEntCQaV",
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        "(history) Old Book of Tang (history of the Tang dynasty completed in A.D. 945)"
      ],
      "related": [
        {
          "alt": "新唐書",
          "word": "Tân Đường thư"
        }
      ],
      "topics": [
        "history",
        "human-sciences",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[kiw˧˨ʔ ʔɗɨəŋ˨˩ tʰɨ˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[kɨw˨˩ʔ ʔɗɨəŋ˦˩ tʰɨ˧˧]",
      "tags": [
        "Huế"
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    },
    {
      "ipa": "[kɨw˨˩˨ ʔɗɨəŋ˨˩ tʰɨ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "Cựu Đường thư"
}

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        "head": "Cựu Đường thư",
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      "expansion": "Cựu Đường thư",
      "name": "head"
    },
    {
      "args": {
        "head": "Cựu Đường thư"
      },
      "expansion": "Cựu Đường thư",
      "name": "vi-proper noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "name",
  "related": [
    {
      "alt": "新唐書",
      "word": "Tân Đường thư"
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  ],
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    {
      "ipa": "[kɨw˨˩˨ ʔɗɨəŋ˨˩ tʰɨ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "Cựu Đường thư"
}