"đau đầu" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "đau",
        "3": "đầu"
      },
      "expansion": "đau + đầu",
      "name": "com"
    }
  ],
  "etymology_text": "đau + đầu.",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "verb",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "đau đầu",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "đau đầu",
      "name": "vi-verb"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "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": "Medical signs and symptoms",
          "orig": "vi:Medical signs and symptoms",
          "parents": [
            "Health",
            "Medicine",
            "Body",
            "Biology",
            "Healthcare",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "to have a headache"
      ],
      "id": "en-đau_đầu-vi-verb-SLvvRJrI",
      "links": [
        [
          "headache",
          "headache"
        ]
      ],
      "raw_glosses": [
        "(literally and figuratively) to have a headache"
      ],
      "tags": [
        "figuratively",
        "literally"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɗaw˧˧ ʔɗəw˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɗaw˧˧ ʔɗəw˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɗa(ː)w˧˧ ʔɗəw˨˩]",
      "note": "Saigon"
    }
  ],
  "word": "đau đầu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "đau",
        "3": "đầu"
      },
      "expansion": "đau + đầu",
      "name": "com"
    }
  ],
  "etymology_text": "đau + đầu.",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "verb",
        "3": "",
        "4": "",
        "head": "",
        "tr": ""
      },
      "expansion": "đau đầu",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "đau đầu",
      "name": "vi-verb"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Vietnamese compound terms",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese terms with IPA pronunciation",
        "Vietnamese verbs",
        "vi:Medical signs and symptoms"
      ],
      "glosses": [
        "to have a headache"
      ],
      "links": [
        [
          "headache",
          "headache"
        ]
      ],
      "raw_glosses": [
        "(literally and figuratively) to have a headache"
      ],
      "tags": [
        "figuratively",
        "literally"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ʔɗaw˧˧ ʔɗəw˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʔɗaw˧˧ ʔɗəw˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʔɗa(ː)w˧˧ ʔɗəw˨˩]",
      "note": "Saigon"
    }
  ],
  "word": "đau đầu"
}