"shadow factory" meaning in English

{
  "forms": [
    {
      "form": "shadow factories",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "shadow factory (plural shadow factories)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1939 November, Charles E. Lee, “Railways and the War — I”, in Railway Magazine, page 313:",
          "text": "[...] but common prudence demanded, even before the outbreak of war, that details should not be disclosed which might reveal to a potential enemy the positions of \"shadow factories\" and air bases, and the location of stores of munitions, petrol, food, and so forth.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An aircraft factory in the World War II era, partly staffed by people from the motor industry, that was kept hidden from enemy aircraft."
      ],
      "id": "en-shadow_factory-en-noun-4ush9EJT",
      "links": [
        [
          "aircraft",
          "aircraft"
        ],
        [
          "factory",
          "factory"
        ],
        [
          "World War II",
          "World War II"
        ],
        [
          "motor",
          "motor"
        ],
        [
          "industry",
          "industry"
        ],
        [
          "hidden",
          "hidden"
        ]
      ],
      "raw_glosses": [
        "(UK, historical) An aircraft factory in the World War II era, partly staffed by people from the motor industry, that was kept hidden from enemy aircraft."
      ],
      "tags": [
        "UK",
        "historical"
      ],
      "wikipedia": [
        "shadow factory"
      ]
    }
  ],
  "word": "shadow factory"
}

{
  "forms": [
    {
      "form": "shadow factories",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "shadow factory (plural shadow factories)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1939 November, Charles E. Lee, “Railways and the War — I”, in Railway Magazine, page 313:",
          "text": "[...] but common prudence demanded, even before the outbreak of war, that details should not be disclosed which might reveal to a potential enemy the positions of \"shadow factories\" and air bases, and the location of stores of munitions, petrol, food, and so forth.",
          "type": "quote"
        }
      ],
      "glosses": [
        "An aircraft factory in the World War II era, partly staffed by people from the motor industry, that was kept hidden from enemy aircraft."
      ],
      "links": [
        [
          "aircraft",
          "aircraft"
        ],
        [
          "factory",
          "factory"
        ],
        [
          "World War II",
          "World War II"
        ],
        [
          "motor",
          "motor"
        ],
        [
          "industry",
          "industry"
        ],
        [
          "hidden",
          "hidden"
        ]
      ],
      "raw_glosses": [
        "(UK, historical) An aircraft factory in the World War II era, partly staffed by people from the motor industry, that was kept hidden from enemy aircraft."
      ],
      "tags": [
        "UK",
        "historical"
      ],
      "wikipedia": [
        "shadow factory"
      ]
    }
  ],
  "word": "shadow factory"
}