"Hán học" meaning in Vietnamese

{
  "etymology_templates": [
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        "1": "vi",
        "2": "Sino-Vietnamese words"
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      "expansion": "",
      "name": "categorize"
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    {
      "args": {
        "1": "漢",
        "2": "Han",
        "3": "學",
        "4": "-logy",
        "suffix": "học"
      },
      "expansion": "Sino-Vietnamese word from 漢學, composed of 漢 (“Han”) and 學 (“-logy”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 漢學, composed of 漢 (“Han”) and 學 (“-logy”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "Hán học",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "Hán học",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Education",
          "orig": "vi:Education",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "98 2",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "98 2",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "99 1",
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "95 5",
          "kind": "other",
          "name": "Vietnamese terms suffixed with -học",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "64 36",
          "kind": "topical",
          "langcode": "vi",
          "name": "Humanities",
          "orig": "vi:Humanities",
          "parents": [
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "education only with Chinese characters"
      ],
      "id": "en-Hán_học-vi-noun-KgFf2lnW",
      "links": [
        [
          "education",
          "education"
        ],
        [
          "Chinese character",
          "Chinese character"
        ]
      ],
      "raw_glosses": [
        "(obsolete, education) education only with Chinese characters"
      ],
      "tags": [
        "obsolete"
      ],
      "topics": [
        "education"
      ]
    },
    {
      "glosses": [
        "sinology"
      ],
      "id": "en-Hán_học-vi-noun--waxFxKR",
      "links": [
        [
          "sinology",
          "sinology"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[haːn˧˦ hawk͡p̚˧˨ʔ]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[haːŋ˦˧˥ hawk͡p̚˨˩ʔ]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[haːŋ˦˥ hawk͡p̚˨˩˨]",
      "note": "Saigon"
    }
  ],
  "wikipedia": [
    "vi:Hán học"
  ],
  "word": "Hán học"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Sino-Vietnamese words",
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    "Vietnamese lemmas",
    "Vietnamese nouns",
    "Vietnamese terms suffixed with -học",
    "Vietnamese terms with IPA pronunciation",
    "vi:Humanities"
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      "expansion": "",
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    {
      "args": {
        "1": "漢",
        "2": "Han",
        "3": "學",
        "4": "-logy",
        "suffix": "học"
      },
      "expansion": "Sino-Vietnamese word from 漢學, composed of 漢 (“Han”) and 學 (“-logy”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 漢學, composed of 漢 (“Han”) and 學 (“-logy”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "Hán học",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "Hán học",
      "name": "vi-noun"
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  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
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      "categories": [
        "Vietnamese terms with obsolete senses",
        "vi:Education"
      ],
      "glosses": [
        "education only with Chinese characters"
      ],
      "links": [
        [
          "education",
          "education"
        ],
        [
          "Chinese character",
          "Chinese character"
        ]
      ],
      "raw_glosses": [
        "(obsolete, education) education only with Chinese characters"
      ],
      "tags": [
        "obsolete"
      ],
      "topics": [
        "education"
      ]
    },
    {
      "glosses": [
        "sinology"
      ],
      "links": [
        [
          "sinology",
          "sinology"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[haːn˧˦ hawk͡p̚˧˨ʔ]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[haːŋ˦˧˥ hawk͡p̚˨˩ʔ]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[haːŋ˦˥ hawk͡p̚˨˩˨]",
      "note": "Saigon"
    }
  ],
  "wikipedia": [
    "vi:Hán học"
  ],
  "word": "Hán học"
}