"training ground" meaning in English

{
  "forms": [
    {
      "form": "training grounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "training ground (plural training grounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Military",
          "orig": "en:Military",
          "parents": [
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Sports",
          "orig": "en:Sports",
          "parents": [
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A place or ground used for training."
      ],
      "id": "en-training_ground-en-noun-s4Ge9yRC",
      "links": [
        [
          "sports",
          "sports"
        ],
        [
          "military",
          "military"
        ]
      ],
      "raw_glosses": [
        "(sports, military) A place or ground used for training."
      ],
      "topics": [
        "government",
        "hobbies",
        "lifestyle",
        "military",
        "politics",
        "sports",
        "war"
      ]
    },
    {
      "categories": [
        {
          "_dis": "40 60",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1961 December, “Talking of Trains: Staff training”, in Trains Illustrated, page 712",
          "text": "These practical training grounds would be much reduced in the future and other means must be found to ensure that drivers and top-grade signalmen had a proper background of experience.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A workplace which provides training for employees."
      ],
      "id": "en-training_ground-en-noun-qax6FDVi",
      "links": [
        [
          "workplace",
          "workplace"
        ],
        [
          "employee",
          "employee"
        ]
      ],
      "raw_glosses": [
        "(by extension) A workplace which provides training for employees."
      ],
      "tags": [
        "broadly"
      ]
    }
  ],
  "word": "training ground"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns"
  ],
  "forms": [
    {
      "form": "training grounds",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "training ground (plural training grounds)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Military",
        "en:Sports"
      ],
      "glosses": [
        "A place or ground used for training."
      ],
      "links": [
        [
          "sports",
          "sports"
        ],
        [
          "military",
          "military"
        ]
      ],
      "raw_glosses": [
        "(sports, military) A place or ground used for training."
      ],
      "topics": [
        "government",
        "hobbies",
        "lifestyle",
        "military",
        "politics",
        "sports",
        "war"
      ]
    },
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1961 December, “Talking of Trains: Staff training”, in Trains Illustrated, page 712",
          "text": "These practical training grounds would be much reduced in the future and other means must be found to ensure that drivers and top-grade signalmen had a proper background of experience.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A workplace which provides training for employees."
      ],
      "links": [
        [
          "workplace",
          "workplace"
        ],
        [
          "employee",
          "employee"
        ]
      ],
      "raw_glosses": [
        "(by extension) A workplace which provides training for employees."
      ],
      "tags": [
        "broadly"
      ]
    }
  ],
  "word": "training ground"
}