"double-heading" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "double-heading (uncountable)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1959 March, “Talking of Trains: The L.M.S. Beyer-Garratts”, in Trains Illustrated, page 122",
          "text": "Mr. S. T. Yaxley recalls that the Garratts were first placed in service on the Toton-Brent and Toton-Wellingborough coal trains and empties back, eliminating much of the double-heading which prior to their introduction was so prevalent in Midland freight train operation.",
          "type": "quotation"
        },
        {
          "ref": "1960 February, A. S. Gillitt, “The operation and maintenance of Belgian main line diesels”, in Trains Illustrated, page 88",
          "text": "There appeared to be no restrictions on single-manning of locomotives in Belgium, but multiple-unit control of two locomotives by one driver has not been adopted; when double-heading is required a driver is put in charge of each locomotive.",
          "type": "quotation"
        },
        {
          "ref": "2021 December 29, Stephen Roberts, “Stories and facts behind railway plaques: Evesham (1870)”, in RAIL, number 947, page 59",
          "text": "[...] Fowler was responsible for a conservative small engine policy at the LMS, previously adopted on the Midland, which led to much double-heading - although the Royal Scot 4-6-0 express passenger locomotive was also introduced on his watch in 1928.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The use of two locomotives at the front, or head, of a train."
      ],
      "id": "en-double-heading-en-noun-0JQrT-vs",
      "links": [
        [
          "rail transport",
          "rail transport"
        ]
      ],
      "raw_glosses": [
        "(rail transport) The use of two locomotives at the front, or head, of a train."
      ],
      "related": [
        {
          "word": "double-header"
        },
        {
          "word": "single-heading"
        },
        {
          "word": "treble-heading"
        }
      ],
      "synonyms": [
        {
          "word": "double heading"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "double-heading"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
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      "expansion": "double-heading",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "32 68",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "double-head"
        }
      ],
      "glosses": [
        "present participle and gerund of double-head"
      ],
      "id": "en-double-heading-en-verb-1A7yp9IN",
      "links": [
        [
          "double-head",
          "double-head#English"
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      "tags": [
        "form-of",
        "gerund",
        "participle",
        "present"
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  ],
  "word": "double-heading"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English non-lemma forms",
    "English nouns",
    "English uncountable nouns",
    "English verb forms"
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  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "double-heading (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "double-header"
    },
    {
      "word": "single-heading"
    },
    {
      "word": "treble-heading"
    }
  ],
  "senses": [
    {
      "categories": [
        "English terms with quotations",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1959 March, “Talking of Trains: The L.M.S. Beyer-Garratts”, in Trains Illustrated, page 122",
          "text": "Mr. S. T. Yaxley recalls that the Garratts were first placed in service on the Toton-Brent and Toton-Wellingborough coal trains and empties back, eliminating much of the double-heading which prior to their introduction was so prevalent in Midland freight train operation.",
          "type": "quotation"
        },
        {
          "ref": "1960 February, A. S. Gillitt, “The operation and maintenance of Belgian main line diesels”, in Trains Illustrated, page 88",
          "text": "There appeared to be no restrictions on single-manning of locomotives in Belgium, but multiple-unit control of two locomotives by one driver has not been adopted; when double-heading is required a driver is put in charge of each locomotive.",
          "type": "quotation"
        },
        {
          "ref": "2021 December 29, Stephen Roberts, “Stories and facts behind railway plaques: Evesham (1870)”, in RAIL, number 947, page 59",
          "text": "[...] Fowler was responsible for a conservative small engine policy at the LMS, previously adopted on the Midland, which led to much double-heading - although the Royal Scot 4-6-0 express passenger locomotive was also introduced on his watch in 1928.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The use of two locomotives at the front, or head, of a train."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ]
      ],
      "raw_glosses": [
        "(rail transport) The use of two locomotives at the front, or head, of a train."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "double heading"
    }
  ],
  "word": "double-heading"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English non-lemma forms",
    "English nouns",
    "English uncountable nouns",
    "English verb forms"
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "form_of": [
        {
          "word": "double-head"
        }
      ],
      "glosses": [
        "present participle and gerund of double-head"
      ],
      "links": [
        [
          "double-head",
          "double-head#English"
        ]
      ],
      "tags": [
        "form-of",
        "gerund",
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        "present"
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  ],
  "word": "double-heading"
}