"樹窿空" meaning in Chinese

{
  "forms": [
    {
      "form": "树窿空",
      "raw_tags": [
        "Simplified Chinese"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "zh",
        "2": "noun"
      },
      "expansion": "樹窿空",
      "name": "head"
    }
  ],
  "lang": "Chinese",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Chinese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hakka Chinese",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "tree hollow"
      ],
      "id": "en-樹窿空-zh-noun-Y4vwJY1S",
      "links": [
        [
          "tree hollow",
          "tree hollow"
        ]
      ],
      "raw_glosses": [
        "(Hakka) tree hollow"
      ],
      "synonyms": [
        {
          "tags": [
            "formal",
            "Standard-Chinese"
          ],
          "word": "樹洞"
        },
        {
          "tags": [
            "Taiwan"
          ],
          "word": "樹洞"
        },
        {
          "tags": [
            "Southwestern-Mandarin",
            "Liuzhou"
          ],
          "word": "樹窿"
        },
        {
          "tags": [
            "Cantonese",
            "Hong-Kong"
          ],
          "word": "樹窿"
        },
        {
          "tags": [
            "Gan",
            "Lichuan"
          ],
          "word": "樹洞"
        },
        {
          "tags": [
            "Hakka",
            "Meixian"
          ],
          "word": "樹窿空"
        },
        {
          "tags": [
            "Leizhou"
          ],
          "word": "樹甕"
        },
        {
          "word": "樹洞"
        },
        {
          "word": "Taiwan"
        },
        {
          "word": "Liuzhou"
        },
        {
          "word": "樹窿"
        },
        {
          "word": "Hong Kong"
        },
        {
          "word": "Lichuan"
        },
        {
          "word": "Meixian"
        },
        {
          "word": "Leizhou"
        },
        {
          "word": "樹甕"
        }
      ],
      "tags": [
        "Hakka"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Guangdong",
        "Hakka",
        "Meixian"
      ],
      "zh-pron": "su⁴ lung² kung¹"
    },
    {
      "ipa": "/su⁵³⁻⁵⁵ lʊŋ¹¹ kʰʊŋ⁴⁴/",
      "tags": [
        "Hakka",
        "Meixian",
        "Sinological-IPA"
      ]
    },
    {
      "ipa": "/su⁵³⁻⁵⁵ lʊŋ¹¹ kʰʊŋ⁴⁴/"
    }
  ],
  "word": "樹窿空"
}

{
  "forms": [
    {
      "form": "树窿空",
      "raw_tags": [
        "Simplified Chinese"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "zh",
        "2": "noun"
      },
      "expansion": "樹窿空",
      "name": "head"
    }
  ],
  "lang": "Chinese",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Chinese entries with incorrect language header",
        "Chinese lemmas",
        "Chinese nouns",
        "Chinese terms spelled with 樹",
        "Chinese terms spelled with 空",
        "Chinese terms spelled with 窿",
        "Chinese terms with IPA pronunciation",
        "Hakka Chinese",
        "Hakka lemmas",
        "Hakka nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "tree hollow"
      ],
      "links": [
        [
          "tree hollow",
          "tree hollow"
        ]
      ],
      "raw_glosses": [
        "(Hakka) tree hollow"
      ],
      "tags": [
        "Hakka"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Guangdong",
        "Hakka",
        "Meixian"
      ],
      "zh-pron": "su⁴ lung² kung¹"
    },
    {
      "ipa": "/su⁵³⁻⁵⁵ lʊŋ¹¹ kʰʊŋ⁴⁴/",
      "tags": [
        "Hakka",
        "Meixian",
        "Sinological-IPA"
      ]
    },
    {
      "ipa": "/su⁵³⁻⁵⁵ lʊŋ¹¹ kʰʊŋ⁴⁴/"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "formal",
        "Standard-Chinese"
      ],
      "word": "樹洞"
    },
    {
      "tags": [
        "Taiwan"
      ],
      "word": "樹洞"
    },
    {
      "tags": [
        "Southwestern-Mandarin",
        "Liuzhou"
      ],
      "word": "樹窿"
    },
    {
      "tags": [
        "Cantonese",
        "Hong-Kong"
      ],
      "word": "樹窿"
    },
    {
      "tags": [
        "Gan",
        "Lichuan"
      ],
      "word": "樹洞"
    },
    {
      "tags": [
        "Hakka",
        "Meixian"
      ],
      "word": "樹窿空"
    },
    {
      "tags": [
        "Leizhou"
      ],
      "word": "樹甕"
    },
    {
      "word": "樹洞"
    },
    {
      "word": "Taiwan"
    },
    {
      "word": "Liuzhou"
    },
    {
      "word": "樹窿"
    },
    {
      "word": "Hong Kong"
    },
    {
      "word": "Lichuan"
    },
    {
      "word": "Meixian"
    },
    {
      "word": "Leizhou"
    },
    {
      "word": "樹甕"
    }
  ],
  "word": "樹窿空"
}