"observation car" meaning in English

{
  "forms": [
    {
      "form": "observation cars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "observation car (plural observation cars)",
      "name": "en-noun"
    }
  ],
  "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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A railway passenger car made so as to facilitate seeing the scenery en route, sometimes with glass sides or with a kind of open balcony at the rear."
      ],
      "id": "en-observation_car-en-noun-guhIW-2L",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "railway",
          "railway"
        ],
        [
          "passenger",
          "passenger"
        ],
        [
          "car",
          "car"
        ],
        [
          "scenery",
          "scenery"
        ],
        [
          "en route",
          "en route"
        ],
        [
          "balcony",
          "balcony"
        ]
      ],
      "raw_glosses": [
        "(rail transport) A railway passenger car made so as to facilitate seeing the scenery en route, sometimes with glass sides or with a kind of open balcony at the rear."
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of railway car",
          "word": "maisemavaunu"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "type of railway car",
          "tags": [
            "masculine"
          ],
          "word": "wagon-salon"
        }
      ]
    }
  ],
  "word": "observation car"
}

{
  "forms": [
    {
      "form": "observation cars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "observation car (plural observation cars)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with French translations",
        "en:Rail transportation"
      ],
      "glosses": [
        "A railway passenger car made so as to facilitate seeing the scenery en route, sometimes with glass sides or with a kind of open balcony at the rear."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "railway",
          "railway"
        ],
        [
          "passenger",
          "passenger"
        ],
        [
          "car",
          "car"
        ],
        [
          "scenery",
          "scenery"
        ],
        [
          "en route",
          "en route"
        ],
        [
          "balcony",
          "balcony"
        ]
      ],
      "raw_glosses": [
        "(rail transport) A railway passenger car made so as to facilitate seeing the scenery en route, sometimes with glass sides or with a kind of open balcony at the rear."
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "type of railway car",
      "word": "maisemavaunu"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "type of railway car",
      "tags": [
        "masculine"
      ],
      "word": "wagon-salon"
    }
  ],
  "word": "observation car"
}