"train spotting" meaning in English

{
  "forms": [
    {
      "form": "trainspotting",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "train spotting (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin terms with non-redundant manual transliterations",
          "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 Mandarin translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Hobbies",
          "orig": "en:Hobbies",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The hobby of collecting the numbers and names of locomotives seen at railway stations and other vantage points."
      ],
      "id": "en-train_spotting-en-noun-M1LVaEmN",
      "links": [
        [
          "hobby",
          "hobby"
        ],
        [
          "collecting",
          "collecting"
        ],
        [
          "number",
          "number"
        ],
        [
          "name",
          "name"
        ],
        [
          "locomotive",
          "locomotive"
        ],
        [
          "railway station",
          "railway station"
        ],
        [
          "vantage point",
          "vantage point"
        ]
      ],
      "related": [
        {
          "word": "trainspotter"
        },
        {
          "word": "planespotting"
        },
        {
          "word": "railfan"
        },
        {
          "word": "gunzel"
        },
        {
          "word": "anorak"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "lang_code": "cmn",
          "roman": "guānchá huǒchē",
          "sense": "hobby of collecting locomotive numbers and names",
          "tags": [
            "rare"
          ],
          "word": "觀察火車 /观察火车"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "lang_code": "fi",
          "sense": "hobby of collecting locomotive numbers and names",
          "word": "junabongaus"
        }
      ]
    }
  ],
  "word": "train spotting"
}

{
  "forms": [
    {
      "form": "trainspotting",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "train spotting (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "trainspotter"
    },
    {
      "word": "planespotting"
    },
    {
      "word": "railfan"
    },
    {
      "word": "gunzel"
    },
    {
      "word": "anorak"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "Entries with translation boxes",
        "Mandarin terms with non-redundant manual transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Mandarin translations",
        "en:Hobbies",
        "en:Rail transportation"
      ],
      "glosses": [
        "The hobby of collecting the numbers and names of locomotives seen at railway stations and other vantage points."
      ],
      "links": [
        [
          "hobby",
          "hobby"
        ],
        [
          "collecting",
          "collecting"
        ],
        [
          "number",
          "number"
        ],
        [
          "name",
          "name"
        ],
        [
          "locomotive",
          "locomotive"
        ],
        [
          "railway station",
          "railway station"
        ],
        [
          "vantage point",
          "vantage point"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "lang_code": "cmn",
      "roman": "guānchá huǒchē",
      "sense": "hobby of collecting locomotive numbers and names",
      "tags": [
        "rare"
      ],
      "word": "觀察火車 /观察火车"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "lang_code": "fi",
      "sense": "hobby of collecting locomotive numbers and names",
      "word": "junabongaus"
    }
  ],
  "word": "train spotting"
}