"石臼" meaning in 汉语

{
  "categories": [
    {
      "kind": "other",
      "name": "漢語名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "漢語詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "汉语",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "用石頭製作的臼"
      ],
      "id": "zh-石臼-zh-noun-pfUimuiw"
    }
  ],
  "tags": [
    "error-lua-exec"
  ],
  "word": "石臼"
}

{
  "categories": [
    "漢語名詞",
    "漢語詞元"
  ],
  "lang": "汉语",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "用石頭製作的臼"
      ]
    }
  ],
  "tags": [
    "error-lua-exec"
  ],
  "word": "石臼"
}

{
  "called_from": "luaexec/683",
  "msg": "LUA error in #invoke('zh-pron', 'make') parent ('Template:Zh-pron', {'m': 'shíjiù', 'c': 'sek6 kau5', 'w': '5zaq jjieu', 'cat': 'n'})",
  "path": [
    "石臼",
    "zh-pron",
    "#invoke",
    "#invoke"
  ],
  "section": "汉语",
  "subsection": "发音",
  "title": "石臼",
  "trace": "[string \"Module:wuu-pron\"]:131: Invalid final: \"jieu\""
}