"tác nhân" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "作",
        "2": "to do",
        "3": "因",
        "4": "cause"
      },
      "expansion": "Sino-Vietnamese word from 作 (“to do”) and 因 (“cause”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 作 (“to do”) and 因 (“cause”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "tác nhân",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "tác nhân",
      "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": "Sino-Vietnamese words with uncreated Han etymology",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Biology",
          "orig": "vi:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Chemistry",
          "orig": "vi:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "agent"
      ],
      "id": "en-tác_nhân-vi-noun-1PC8Wine",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "chemistry",
          "chemistry"
        ],
        [
          "agent",
          "agent"
        ]
      ],
      "raw_glosses": [
        "(biology, chemistry) agent"
      ],
      "topics": [
        "biology",
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[taːk̚˧˦ ɲən˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[taːk̚˦˧˥ ɲəŋ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[taːk̚˦˥ ɲəŋ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "tác nhân"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "作",
        "2": "to do",
        "3": "因",
        "4": "cause"
      },
      "expansion": "Sino-Vietnamese word from 作 (“to do”) and 因 (“cause”)",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 作 (“to do”) and 因 (“cause”).",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "tác nhân",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "tác nhân",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "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:Biology",
        "vi:Chemistry"
      ],
      "glosses": [
        "agent"
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "chemistry",
          "chemistry"
        ],
        [
          "agent",
          "agent"
        ]
      ],
      "raw_glosses": [
        "(biology, chemistry) agent"
      ],
      "topics": [
        "biology",
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[taːk̚˧˦ ɲən˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[taːk̚˦˧˥ ɲəŋ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[taːk̚˦˥ ɲəŋ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "tác nhân"
}