"flat wagon" meaning in English

{
  "forms": [
    {
      "form": "flat wagons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "flat wagon (plural flat wagons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1944 January and February, “Light Railways in Derbyshire”, in Railway Magazine, page 25",
          "text": "Two flat wagons carrying tanks were also seen here.",
          "type": "quotation"
        },
        {
          "ref": "1946 March and April, “Notes and News: Train Watching in a P.O.W. Camp”, in Railway Magazine, page 117",
          "text": "One train ferry wagon, with the inscription \"On hire to L.N.E.R.,\" was carrying British prisoners; and another odd sight was an L.N.E.R. container on a German flat wagon, offering \"Door to Door Transport.\"",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An open railway wagon without sides and roof, or with very low sides."
      ],
      "id": "en-flat_wagon-en-noun-GCgPcINW",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "open",
          "open"
        ],
        [
          "railway",
          "railway"
        ],
        [
          "wagon",
          "wagon"
        ]
      ],
      "raw_glosses": [
        "(rail transport, UK) An open railway wagon without sides and roof, or with very low sides."
      ],
      "synonyms": [
        {
          "english": "American",
          "word": "flatcar"
        },
        {
          "word": "flatbed"
        },
        {
          "tags": [
            "British",
            "synonym"
          ],
          "word": "truck"
        }
      ],
      "tags": [
        "UK"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "flat wagon"
}

{
  "forms": [
    {
      "form": "flat wagons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "flat wagon (plural flat wagons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1944 January and February, “Light Railways in Derbyshire”, in Railway Magazine, page 25",
          "text": "Two flat wagons carrying tanks were also seen here.",
          "type": "quotation"
        },
        {
          "ref": "1946 March and April, “Notes and News: Train Watching in a P.O.W. Camp”, in Railway Magazine, page 117",
          "text": "One train ferry wagon, with the inscription \"On hire to L.N.E.R.,\" was carrying British prisoners; and another odd sight was an L.N.E.R. container on a German flat wagon, offering \"Door to Door Transport.\"",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An open railway wagon without sides and roof, or with very low sides."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "open",
          "open"
        ],
        [
          "railway",
          "railway"
        ],
        [
          "wagon",
          "wagon"
        ]
      ],
      "raw_glosses": [
        "(rail transport, UK) An open railway wagon without sides and roof, or with very low sides."
      ],
      "synonyms": [
        {
          "english": "American",
          "word": "flatcar"
        },
        {
          "word": "flatbed"
        },
        {
          "tags": [
            "British",
            "synonym"
          ],
          "word": "truck"
        }
      ],
      "tags": [
        "UK"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "flat wagon"
}