"404 page" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "404",
        "3": "page",
        "pos1": "error message",
        "t2": "webpage"
      },
      "expansion": "404 (error message) + page (“webpage”)",
      "name": "com"
    }
  ],
  "etymology_text": "From 404 (error message) + page (“webpage”).",
  "forms": [
    {
      "form": "404 pages",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "404 page (plural 404 pages)",
      "name": "en-noun"
    }
  ],
  "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": "topical",
          "langcode": "en",
          "name": "Internet",
          "orig": "en:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The website must be down; I got a 404 page.",
          "type": "example"
        }
      ],
      "glosses": [
        "The result of trying to follow a broken link within a website."
      ],
      "id": "en-404_page-en-noun-GoanZj~b",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "broken",
          "broken"
        ],
        [
          "link",
          "link"
        ],
        [
          "website",
          "website"
        ]
      ],
      "raw_glosses": [
        "(Internet) The result of trying to follow a broken link within a website."
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌfɔɹ.oʊ.ˈfɔɹ.peɪdʒ/",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "404 page"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "404",
        "3": "page",
        "pos1": "error message",
        "t2": "webpage"
      },
      "expansion": "404 (error message) + page (“webpage”)",
      "name": "com"
    }
  ],
  "etymology_text": "From 404 (error message) + page (“webpage”).",
  "forms": [
    {
      "form": "404 pages",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "404 page (plural 404 pages)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms spelled with numbers",
        "English terms with IPA pronunciation",
        "English terms with usage examples",
        "IPA for English using .ˈ or .ˌ",
        "en:Internet"
      ],
      "examples": [
        {
          "text": "The website must be down; I got a 404 page.",
          "type": "example"
        }
      ],
      "glosses": [
        "The result of trying to follow a broken link within a website."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "broken",
          "broken"
        ],
        [
          "link",
          "link"
        ],
        [
          "website",
          "website"
        ]
      ],
      "raw_glosses": [
        "(Internet) The result of trying to follow a broken link within a website."
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌfɔɹ.oʊ.ˈfɔɹ.peɪdʒ/",
      "tags": [
        "US"
      ]
    }
  ],
  "word": "404 page"
}