"how do" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase",
        "head": "how do?"
      },
      "expansion": "how do?",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "how do you do"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of how do you do"
      ],
      "id": "en-how_do-en-phrase-1OqyVgDc",
      "links": [
        [
          "how do you do",
          "how do you do#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial) Alternative form of how do you do"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌhæwˈduw/",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "how do"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase",
        "head": "how do?"
      },
      "expansion": "how do?",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "how do you do"
        }
      ],
      "categories": [
        "English colloquialisms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with IPA pronunciation"
      ],
      "glosses": [
        "Alternative form of how do you do"
      ],
      "links": [
        [
          "how do you do",
          "how do you do#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial) Alternative form of how do you do"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "colloquial"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌhæwˈduw/",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "how do"
}