"lost media" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "lost",
        "3": "media"
      },
      "expansion": "lost + media",
      "name": "com"
    }
  ],
  "etymology_text": "From lost + media.",
  "forms": [
    {
      "form": "lost medias",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "lost media",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s",
        "3": "lost media"
      },
      "expansion": "lost media (usually uncountable, plural lost medias or lost media)",
      "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": "other",
          "name": "Entries with translation boxes",
          "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": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Media",
          "orig": "en:Media",
          "parents": [
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any form of information, entertainment or other media that was once available to the public, which is now believed to be irrecoverable or otherwise unable to be consumed."
      ],
      "id": "en-lost_media-en-noun-S9vYLktx",
      "links": [
        [
          "information",
          "information"
        ],
        [
          "entertainment",
          "entertainment"
        ],
        [
          "media",
          "media"
        ],
        [
          "public",
          "public"
        ],
        [
          "irrecoverable",
          "irrecoverable"
        ],
        [
          "unable",
          "unable"
        ],
        [
          "consume",
          "consume"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "translations": [
        {
          "code": "ja",
          "english": "rosuto media",
          "lang": "Japanese",
          "sense": "unavailable media",
          "word": "ロストメディア"
        },
        {
          "code": "ja",
          "english": "ushinawareta media",
          "lang": "Japanese",
          "sense": "unavailable media",
          "word": "失われたメディア"
        }
      ]
    }
  ],
  "word": "lost media"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "lost",
        "3": "media"
      },
      "expansion": "lost + media",
      "name": "com"
    }
  ],
  "etymology_text": "From lost + media.",
  "forms": [
    {
      "form": "lost medias",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "lost media",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s",
        "3": "lost media"
      },
      "expansion": "lost media (usually uncountable, plural lost medias or lost media)",
      "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 uncountable nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Japanese translations",
        "en:Media"
      ],
      "glosses": [
        "Any form of information, entertainment or other media that was once available to the public, which is now believed to be irrecoverable or otherwise unable to be consumed."
      ],
      "links": [
        [
          "information",
          "information"
        ],
        [
          "entertainment",
          "entertainment"
        ],
        [
          "media",
          "media"
        ],
        [
          "public",
          "public"
        ],
        [
          "irrecoverable",
          "irrecoverable"
        ],
        [
          "unable",
          "unable"
        ],
        [
          "consume",
          "consume"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    }
  ],
  "translations": [
    {
      "code": "ja",
      "english": "rosuto media",
      "lang": "Japanese",
      "sense": "unavailable media",
      "word": "ロストメディア"
    },
    {
      "code": "ja",
      "english": "ushinawareta media",
      "lang": "Japanese",
      "sense": "unavailable media",
      "word": "失われたメディア"
    }
  ],
  "word": "lost media"
}