"boghead" meaning in English

{
  "forms": [
    {
      "form": "bogheads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "boghead (usually uncountable, plural bogheads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "boghead coal"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
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          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with consonant pseudo-digraphs",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2018, O. P. Gupta, Elements of Fuel & Combustion Technology, page 35",
          "text": "Cannel is dull black in colour while boghead is dull brownish.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Short for boghead coal."
      ],
      "id": "en-boghead-en-noun-SWwt6w9v",
      "links": [
        [
          "boghead coal",
          "boghead coal#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "boghead"
}

{
  "forms": [
    {
      "form": "bogheads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "boghead (usually uncountable, plural bogheads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "boghead coal"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English nouns",
        "English short forms",
        "English terms with consonant pseudo-digraphs",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "2018, O. P. Gupta, Elements of Fuel & Combustion Technology, page 35",
          "text": "Cannel is dull black in colour while boghead is dull brownish.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Short for boghead coal."
      ],
      "links": [
        [
          "boghead coal",
          "boghead coal#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "uncountable",
        "usually"
      ]
    }
  ],
  "word": "boghead"
}