"steel mill" meaning in English

{
  "forms": [
    {
      "form": "steel mills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "steel mill (plural steel mills)",
      "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"
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          "source": "w"
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Steel",
          "orig": "en:Steel",
          "parents": [
            "Alloys",
            "Iron",
            "Metals",
            "Transition metals",
            "Matter",
            "Metallurgy",
            "Chemical elements",
            "Chemistry",
            "Nature",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An industrial facility that produces or processes steel."
      ],
      "id": "en-steel_mill-en-noun-~hjJOdaX"
    }
  ],
  "word": "steel mill"
}

{
  "forms": [
    {
      "form": "steel mills",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "steel mill (plural steel mills)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "en:Steel"
      ],
      "glosses": [
        "An industrial facility that produces or processes steel."
      ]
    }
  ],
  "word": "steel mill"
}