"trainset" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "train",
        "3": "set"
      },
      "expansion": "train + set",
      "name": "compound"
    }
  ],
  "etymology_text": "From train + set.",
  "forms": [
    {
      "form": "trainsets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "trainset (plural trainsets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A locomotive and carriages coupled together to form a unified set of equipment."
      ],
      "id": "en-trainset-en-noun-wzmKMUHI",
      "links": [
        [
          "locomotive",
          "locomotive"
        ],
        [
          "carriage",
          "carriage"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "20 80",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "11 89",
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "21 79",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 80",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "12 88",
          "kind": "other",
          "name": "Terms with Danish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "15 85",
          "kind": "other",
          "name": "Terms with Norwegian Bokmål translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Terms with Norwegian Nynorsk translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "17 83",
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "a self-propelled electric or diesel multiple unit, consisting of a fixed number of permanently coupled passenger vehicles."
      ],
      "id": "en-trainset-en-noun-dw6aA6RG",
      "links": [
        [
          "self-propelled",
          "self-propelled"
        ],
        [
          "multiple unit",
          "multiple unit"
        ]
      ],
      "translations": [
        {
          "_dis1": "7 93",
          "code": "da",
          "lang": "Danish",
          "sense": "multiple unit",
          "tags": [
            "neuter"
          ],
          "word": "togsæt"
        },
        {
          "_dis1": "7 93",
          "code": "nb",
          "lang": "Norwegian Bokmål",
          "sense": "multiple unit",
          "tags": [
            "neuter"
          ],
          "word": "togsett"
        },
        {
          "_dis1": "7 93",
          "code": "nn",
          "lang": "Norwegian Nynorsk",
          "sense": "multiple unit",
          "tags": [
            "neuter"
          ],
          "word": "togsett"
        },
        {
          "_dis1": "7 93",
          "code": "sv",
          "lang": "Swedish",
          "sense": "multiple unit",
          "tags": [
            "neuter"
          ],
          "word": "tågsätt"
        }
      ]
    }
  ],
  "word": "trainset"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Danish translations",
    "Terms with Norwegian Bokmål translations",
    "Terms with Norwegian Nynorsk translations",
    "Terms with Swedish translations",
    "en:Rail transportation"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "train",
        "3": "set"
      },
      "expansion": "train + set",
      "name": "compound"
    }
  ],
  "etymology_text": "From train + set.",
  "forms": [
    {
      "form": "trainsets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "trainset (plural trainsets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A locomotive and carriages coupled together to form a unified set of equipment."
      ],
      "links": [
        [
          "locomotive",
          "locomotive"
        ],
        [
          "carriage",
          "carriage"
        ]
      ]
    },
    {
      "glosses": [
        "a self-propelled electric or diesel multiple unit, consisting of a fixed number of permanently coupled passenger vehicles."
      ],
      "links": [
        [
          "self-propelled",
          "self-propelled"
        ],
        [
          "multiple unit",
          "multiple unit"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "da",
      "lang": "Danish",
      "sense": "multiple unit",
      "tags": [
        "neuter"
      ],
      "word": "togsæt"
    },
    {
      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "multiple unit",
      "tags": [
        "neuter"
      ],
      "word": "togsett"
    },
    {
      "code": "nn",
      "lang": "Norwegian Nynorsk",
      "sense": "multiple unit",
      "tags": [
        "neuter"
      ],
      "word": "togsett"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "multiple unit",
      "tags": [
        "neuter"
      ],
      "word": "tågsätt"
    }
  ],
  "word": "trainset"
}