"天性" meaning in 漢語

{
  "categories": [
    {
      "kind": "other",
      "name": "待分類的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "待分類的漢語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "漢語",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "漢語",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "天性【てんせい】\n天性，天生。\n習慣は第二の天性である\n习惯是第二天性。"
      ],
      "id": "zh-天性-zh-unknown-e4DoC4OH"
    }
  ],
  "word": "天性"
}

{
  "categories": [
    "待分類的日語詞",
    "待分類的漢語詞",
    "日語",
    "漢語"
  ],
  "lang": "漢語",
  "lang_code": "zh",
  "pos": "unknown",
  "senses": [
    {
      "glosses": [
        "天性【てんせい】\n天性，天生。\n習慣は第二の天性である\n习惯是第二天性。"
      ]
    }
  ],
  "word": "天性"
}

{
  "called_from": "extractor/zh/page/parse_section/192",
  "msg": "Unhandled subtitle: 寫法",
  "path": [
    "天性"
  ],
  "section": "漢語",
  "subsection": "寫法",
  "title": "天性",
  "trace": ""
}

{
  "called_from": "luaexec/683",
  "msg": "LUA error in #invoke('zh-pron', 'make') parent ('Template:Zh-pron', {'m': 'tiānxìng', 'c': 'tin1 sing3', 'h': 'pfs=thiên-sin', 'mn': 'thian-sèng', 'w': '1thi xin', 'cat': 'n'})",
  "path": [
    "天性",
    "zh-pron",
    "#invoke",
    "#invoke"
  ],
  "section": "漢語",
  "subsection": "讀音",
  "title": "天性",
  "trace": "[string \"Module:wuu-pron\"]:205: Invalid syllable: 1thi xin. Wugniu expected, but another romanisation is supplied."
}