"whys" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun form"
      },
      "expansion": "whys",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English links with manual fragments",
          "parents": [
            "Links with manual fragments",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English miscellaneous irregular plurals",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Plurals with a red link for singular",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "whys and wherefores"
        }
      ],
      "examples": [
        {
          "text": "Alternative form: why's"
        }
      ],
      "form_of": [
        {
          "word": "why"
        }
      ],
      "glosses": [
        "plural of why"
      ],
      "id": "en-whys-en-noun-dUFrrZMe",
      "links": [
        [
          "why",
          "why#Noun"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-aɪz"
    }
  ],
  "word": "whys"
}

{
  "derived": [
    {
      "word": "whys and wherefores"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun form"
      },
      "expansion": "whys",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English links with manual fragments",
        "English miscellaneous irregular plurals",
        "English non-lemma forms",
        "English noun forms",
        "Pages with 1 entry",
        "Pages with entries",
        "Plurals with a red link for singular",
        "Rhymes:English/aɪz",
        "Rhymes:English/aɪz/1 syllable"
      ],
      "examples": [
        {
          "text": "Alternative form: why's"
        }
      ],
      "form_of": [
        {
          "word": "why"
        }
      ],
      "glosses": [
        "plural of why"
      ],
      "links": [
        [
          "why",
          "why#Noun"
        ]
      ],
      "tags": [
        "form-of",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-aɪz"
    }
  ],
  "word": "whys"
}