"bí danh" meaning in Vietnamese

{
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        "2": "Sino-Vietnamese words"
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      "expansion": "",
      "name": "categorize"
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    {
      "args": {
        "1": "秘",
        "2": "secret",
        "3": "名",
        "4": "name"
      },
      "expansion": "Sino-Vietnamese word from 秘 (“secret”) and 名 (“name”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 秘 (“secret”) and 名 (“name”).",
  "head_templates": [
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      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
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      },
      "expansion": "bí danh",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "bí danh",
      "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"
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          "source": "w"
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          "parents": [],
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          "parents": [
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Espionage",
          "orig": "vi:Espionage",
          "parents": [
            "Deception",
            "Secrecy",
            "Security",
            "Ethics",
            "Human behaviour",
            "Society",
            "Philosophy",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Onomastics",
          "orig": "vi:Onomastics",
          "parents": [
            "Linguistics",
            "Names",
            "Language",
            "Social sciences",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Communication",
            "Sciences",
            "Society",
            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "an alias"
      ],
      "id": "en-bí_danh-vi-noun-vN~EHTFp",
      "links": [
        [
          "espionage",
          "espionage"
        ],
        [
          "alias",
          "alias#English"
        ]
      ],
      "raw_glosses": [
        "(chiefly espionage) an alias"
      ],
      "related": [
        {
          "word": "bí mật"
        },
        {
          "word": "mật danh"
        },
        {
          "english": "penname",
          "word": "bút danh"
        },
        {
          "english": "stage name",
          "word": "nghệ danh"
        },
        {
          "word": "biệt danh"
        }
      ],
      "topics": [
        "espionage",
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɓi˧˦ zajŋ̟˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɓɪj˨˩˦ jɛɲ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɓɪj˦˥ jan˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "bí danh"
}

{
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      "args": {
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        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "秘",
        "2": "secret",
        "3": "名",
        "4": "name"
      },
      "expansion": "Sino-Vietnamese word from 秘 (“secret”) and 名 (“name”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 秘 (“secret”) and 名 (“name”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "bí danh",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "bí danh",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "related": [
    {
      "word": "bí mật"
    },
    {
      "word": "mật danh"
    },
    {
      "english": "penname",
      "word": "bút danh"
    },
    {
      "english": "stage name",
      "word": "nghệ danh"
    },
    {
      "word": "biệt danh"
    }
  ],
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        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Sino-Vietnamese words with uncreated Han etymology",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese terms with IPA pronunciation",
        "vi:Espionage",
        "vi:Onomastics"
      ],
      "glosses": [
        "an alias"
      ],
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        [
          "espionage",
          "espionage"
        ],
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          "alias",
          "alias#English"
        ]
      ],
      "raw_glosses": [
        "(chiefly espionage) an alias"
      ],
      "topics": [
        "espionage",
        "government",
        "military",
        "politics",
        "war"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɓi˧˦ zajŋ̟˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɓɪj˨˩˦ jɛɲ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɓɪj˦˥ jan˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "bí danh"
}