"đầu quân" meaning in Vietnamese

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      "expansion": "Sino-Vietnamese word from 投軍",
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  "etymology_text": "Sino-Vietnamese word from 投軍.",
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        "3": "",
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      "expansion": "đầu quân",
      "name": "head"
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    {
      "args": {},
      "expansion": "đầu quân",
      "name": "vi-verb"
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  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "verb",
  "senses": [
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        {
          "_dis": "50 50",
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      "glosses": [
        "to join the army; to enlist"
      ],
      "id": "en-đầu_quân-vi-verb-M-O1dPNf",
      "links": [
        [
          "join",
          "join"
        ],
        [
          "army",
          "army"
        ],
        [
          "enlist",
          "enlist"
        ]
      ],
      "raw_glosses": [
        "(archaic) to join the army; to enlist"
      ],
      "tags": [
        "archaic"
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            "Entries with incorrect language header",
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      "glosses": [
        "to join (a unit, an organisation, etc.)"
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          "join",
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  ],
  "sounds": [
    {
      "ipa": "[ʔɗəw˨˩ kwən˧˧]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɗəw˦˩ kwəŋ˧˧]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɗəw˨˩ wəŋ˧˧]",
      "note": "Saigon"
    }
  ],
  "word": "đầu quân"
}

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      "expansion": "đầu quân",
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  "lang_code": "vi",
  "pos": "verb",
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      "glosses": [
        "to join the army; to enlist"
      ],
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        [
          "join",
          "join"
        ],
        [
          "army",
          "army"
        ],
        [
          "enlist",
          "enlist"
        ]
      ],
      "raw_glosses": [
        "(archaic) to join the army; to enlist"
      ],
      "tags": [
        "archaic"
      ]
    },
    {
      "glosses": [
        "to join (a unit, an organisation, etc.)"
      ],
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        [
          "join",
          "join"
        ],
        [
          "unit",
          "unit"
        ],
        [
          "organisation",
          "organisation"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɗəw˨˩ kwən˧˧]",
      "tags": [
        "Hà-Nội"
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    },
    {
      "ipa": "[ʔɗəw˦˩ kwəŋ˧˧]",
      "tags": [
        "Huế"
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    },
    {
      "ipa": "[ʔɗəw˨˩ wəŋ˧˧]",
      "note": "Saigon"
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  "word": "đầu quân"
}