"mini digger" meaning in English

{
  "forms": [
    {
      "form": "mini diggers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mini digger (plural mini diggers)",
      "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": "topical",
          "langcode": "en",
          "name": "Construction vehicles",
          "orig": "en:Construction vehicles",
          "parents": [
            "Construction",
            "Vehicles",
            "Architecture",
            "Engineering",
            "Machines",
            "Transport",
            "Applied sciences",
            "Art",
            "Technology",
            "All topics",
            "Sciences",
            "Culture",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a small excavator with a swivelling superstructure, usually mounted on crawler tracks."
      ],
      "id": "en-mini_digger-en-noun-8UZm1glS",
      "links": [
        [
          "excavator",
          "excavator"
        ],
        [
          "swivelling",
          "swivelling"
        ],
        [
          "superstructure",
          "superstructure"
        ],
        [
          "crawler",
          "crawler"
        ],
        [
          "track",
          "track"
        ]
      ],
      "synonyms": [
        {
          "word": "mini excavator"
        }
      ]
    }
  ],
  "word": "mini digger"
}

{
  "forms": [
    {
      "form": "mini diggers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mini digger (plural mini diggers)",
      "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",
        "en:Construction vehicles"
      ],
      "glosses": [
        "a small excavator with a swivelling superstructure, usually mounted on crawler tracks."
      ],
      "links": [
        [
          "excavator",
          "excavator"
        ],
        [
          "swivelling",
          "swivelling"
        ],
        [
          "superstructure",
          "superstructure"
        ],
        [
          "crawler",
          "crawler"
        ],
        [
          "track",
          "track"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "mini excavator"
    }
  ],
  "word": "mini digger"
}