"double-end" meaning in English

{
  "forms": [
    {
      "form": "double-ends",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "double-ending",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "double-ended",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "double-ended",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double-end (third-person singular simple present double-ends, present participle double-ending, simple past and past participle double-ended)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "_dis1": "0 0",
      "word": "double-ended"
    },
    {
      "_dis1": "0 0",
      "word": "step back"
    },
    {
      "_dis1": "0 0",
      "word": "stepping back"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "To operate a train with a locomotive at each end."
      ],
      "id": "en-double-end-en-verb-CNnBqN0Z",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "locomotive",
          "locomotive"
        ]
      ],
      "raw_glosses": [
        "(rail transport, transitive) To operate a train with a locomotive at each end."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "17 83",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To operate a train, especially a multiple unit, with a driver at each end of the train for fast turnaround times."
      ],
      "id": "en-double-end-en-verb-tnQqNJ7Q",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "multiple unit",
          "multiple unit"
        ],
        [
          "turnaround",
          "turnaround"
        ]
      ],
      "raw_glosses": [
        "(rail transport, transitive) To operate a train, especially a multiple unit, with a driver at each end of the train for fast turnaround times."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "double-end"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English verbs"
  ],
  "forms": [
    {
      "form": "double-ends",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "double-ending",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "double-ended",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "double-ended",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double-end (third-person singular simple present double-ends, present participle double-ending, simple past and past participle double-ended)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "double-ended"
    },
    {
      "word": "step back"
    },
    {
      "word": "stepping back"
    }
  ],
  "senses": [
    {
      "categories": [
        "English transitive verbs",
        "en:Rail transportation"
      ],
      "glosses": [
        "To operate a train with a locomotive at each end."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "locomotive",
          "locomotive"
        ]
      ],
      "raw_glosses": [
        "(rail transport, transitive) To operate a train with a locomotive at each end."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    },
    {
      "categories": [
        "English transitive verbs",
        "en:Rail transportation"
      ],
      "glosses": [
        "To operate a train, especially a multiple unit, with a driver at each end of the train for fast turnaround times."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "multiple unit",
          "multiple unit"
        ],
        [
          "turnaround",
          "turnaround"
        ]
      ],
      "raw_glosses": [
        "(rail transport, transitive) To operate a train, especially a multiple unit, with a driver at each end of the train for fast turnaround times."
      ],
      "tags": [
        "transitive"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "double-end"
}