"coalheaver" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*keh₂p-"
      },
      "expansion": "",
      "name": "root"
    },
    {
      "args": {
        "1": "en",
        "2": "coal",
        "3": "heaver"
      },
      "expansion": "coal + heaver",
      "name": "compound"
    }
  ],
  "etymology_text": "coal + heaver",
  "forms": [
    {
      "form": "coalheavers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coalheaver (plural coalheavers)",
      "name": "en-noun"
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  ],
  "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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          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
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          "source": "w"
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      ],
      "glosses": [
        "One who feeds coal into a furnace."
      ],
      "id": "en-coalheaver-en-noun-~qxXbsr7",
      "links": [
        [
          "coal",
          "coal"
        ],
        [
          "furnace",
          "furnace"
        ]
      ],
      "related": [
        {
          "word": "coalheaving"
        }
      ]
    }
  ],
  "word": "coalheaver"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*keh₂p-"
      },
      "expansion": "",
      "name": "root"
    },
    {
      "args": {
        "1": "en",
        "2": "coal",
        "3": "heaver"
      },
      "expansion": "coal + heaver",
      "name": "compound"
    }
  ],
  "etymology_text": "coal + heaver",
  "forms": [
    {
      "form": "coalheavers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coalheaver (plural coalheavers)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "coalheaving"
    }
  ],
  "senses": [
    {
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        "English 3-syllable words",
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English nouns",
        "English terms derived from Proto-Indo-European",
        "English terms derived from the Proto-Indo-European root *keh₂p-"
      ],
      "glosses": [
        "One who feeds coal into a furnace."
      ],
      "links": [
        [
          "coal",
          "coal"
        ],
        [
          "furnace",
          "furnace"
        ]
      ]
    }
  ],
  "word": "coalheaver"
}