"coalfield" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "coal",
        "3": "field"
      },
      "expansion": "coal + field",
      "name": "compound"
    }
  ],
  "etymology_text": "coal + field",
  "forms": [
    {
      "form": "coalfields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coalfield (plural coalfields)",
      "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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          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Coal",
          "orig": "en:Coal",
          "parents": [
            "Fossil fuels",
            "Carbon",
            "Energy",
            "Natural resources",
            "Carbon group elements",
            "Nature",
            "Matter",
            "Chemical elements",
            "All topics",
            "Chemistry",
            "Fundamental",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1961 August, “New traffic flows in South Wales”, in Trains Illustrated, page 492",
          "text": "The amount of coal despatched in the Western Region is about 24,000,000 tons a year, nearly all from South Wales, though the Region includes the Forest of Dean, N. Somerset, and part of the N. Wales coalfields.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Any region containing deposits of coal that may be mined."
      ],
      "id": "en-coalfield-en-noun-5yi7UECM",
      "links": [
        [
          "coal",
          "coal"
        ]
      ],
      "translations": [
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "zálež ot kámenni vǎ́glišta",
          "sense": "region containing deposits of coal",
          "tags": [
            "masculine"
          ],
          "word": "за́леж от ка́менни въ́глища"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "méitián",
          "sense": "region containing deposits of coal",
          "word": "煤田"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "region containing deposits of coal",
          "word": "hiilikenttä"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "region containing deposits of coal",
          "tags": [
            "neuter"
          ],
          "word": "zagłębie"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "kamennoúgolʹnyj basséjn",
          "sense": "region containing deposits of coal",
          "tags": [
            "masculine"
          ],
          "word": "каменноу́гольный бассе́йн"
        }
      ]
    }
  ],
  "word": "coalfield"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "coal",
        "3": "field"
      },
      "expansion": "coal + field",
      "name": "compound"
    }
  ],
  "etymology_text": "coal + field",
  "forms": [
    {
      "form": "coalfields",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coalfield (plural coalfields)",
      "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 entries with topic categories using raw markup",
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        "en:Coal"
      ],
      "examples": [
        {
          "ref": "1961 August, “New traffic flows in South Wales”, in Trains Illustrated, page 492",
          "text": "The amount of coal despatched in the Western Region is about 24,000,000 tons a year, nearly all from South Wales, though the Region includes the Forest of Dean, N. Somerset, and part of the N. Wales coalfields.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Any region containing deposits of coal that may be mined."
      ],
      "links": [
        [
          "coal",
          "coal"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "zálež ot kámenni vǎ́glišta",
      "sense": "region containing deposits of coal",
      "tags": [
        "masculine"
      ],
      "word": "за́леж от ка́менни въ́глища"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "méitián",
      "sense": "region containing deposits of coal",
      "word": "煤田"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "region containing deposits of coal",
      "word": "hiilikenttä"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "region containing deposits of coal",
      "tags": [
        "neuter"
      ],
      "word": "zagłębie"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "kamennoúgolʹnyj basséjn",
      "sense": "region containing deposits of coal",
      "tags": [
        "masculine"
      ],
      "word": "каменноу́гольный бассе́йн"
    }
  ],
  "word": "coalfield"
}