"thảo thư" meaning in Vietnamese

{
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        "2": "Sino-Vietnamese words"
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    {
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        "1": "草書",
        "2": "grass script"
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      "expansion": "Sino-Vietnamese word from 草書 (“grass script”)",
      "name": "vi-etym-sino"
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  "etymology_text": "Sino-Vietnamese word from 草書 (“grass script”).",
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        "2": "noun",
        "3": "",
        "4": "",
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      },
      "expansion": "thảo thư",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "thảo thư",
      "name": "vi-noun"
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  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
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          "source": "w"
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          "name": "Vietnamese nouns without classifiers",
          "parents": [],
          "source": "w"
        },
        {
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          "langcode": "vi",
          "name": "Calligraphy",
          "orig": "vi:Calligraphy",
          "parents": [
            "Art",
            "Writing",
            "Culture",
            "Human behaviour",
            "Language",
            "Society",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "grass script"
      ],
      "id": "en-thảo_thư-vi-noun-m6ngXLKk",
      "links": [
        [
          "calligraphy",
          "calligraphy"
        ],
        [
          "grass script",
          "grass script"
        ]
      ],
      "raw_glosses": [
        "(calligraphy) grass script"
      ],
      "synonyms": [
        {
          "word": "chữ thảo"
        }
      ],
      "topics": [
        "arts",
        "calligraphy",
        "communications",
        "journalism",
        "literature",
        "media",
        "publishing",
        "writing"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tʰaːw˧˩ tʰɨ˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[tʰaːw˧˨ tʰɨ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[tʰaːw˨˩˦ tʰɨ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "thảo thư"
}

{
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        "1": "草書",
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      "expansion": "Sino-Vietnamese word from 草書 (“grass script”)",
      "name": "vi-etym-sino"
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      "expansion": "thảo thư",
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      "args": {},
      "expansion": "thảo thư",
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  "pos": "noun",
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        "grass script"
      ],
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        [
          "calligraphy",
          "calligraphy"
        ],
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          "grass script",
          "grass script"
        ]
      ],
      "raw_glosses": [
        "(calligraphy) grass script"
      ],
      "synonyms": [
        {
          "word": "chữ thảo"
        }
      ],
      "topics": [
        "arts",
        "calligraphy",
        "communications",
        "journalism",
        "literature",
        "media",
        "publishing",
        "writing"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[tʰaːw˧˩ tʰɨ˧˧]",
      "tags": [
        "Hà-Nội"
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    },
    {
      "ipa": "[tʰaːw˧˨ tʰɨ˧˧]",
      "tags": [
        "Huế"
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    },
    {
      "ipa": "[tʰaːw˨˩˦ tʰɨ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "thảo thư"
}