"nan" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "有2個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言符號",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言迴文",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "跨語言",
  "lang_code": "mul",
  "pos": "symbol",
  "pos_title": "符號",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "ISO 639-3",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "(國際標準) ISO 639-3 語言代碼，表示閩南語。"
      ],
      "id": "zh-nan-mul-symbol-p9wD8r4U"
    }
  ],
  "word": "nan"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "待分類的越南語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "越南語",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "越南語",
  "lang_code": "vi",
  "pos": "unknown",
  "pos_title": "釋義",
  "senses": [
    {
      "glosses": [
        "漢字：𪄿  涍 㬮 蔏 𥸁 難 儺 难 傩 󰊴 䕼"
      ],
      "id": "zh-nan-vi-unknown-Qa4Q5iPh"
    }
  ],
  "word": "nan"
}

{
  "categories": [
    "待分類的越南語詞",
    "越南語"
  ],
  "lang": "越南語",
  "lang_code": "vi",
  "pos": "unknown",
  "pos_title": "釋義",
  "senses": [
    {
      "glosses": [
        "漢字：𪄿  涍 㬮 蔏 𥸁 難 儺 难 傩 󰊴 䕼"
      ]
    }
  ],
  "word": "nan"
}

{
  "categories": [
    "有2個詞條的頁面",
    "有詞條的頁面",
    "跨語言符號",
    "跨語言詞元",
    "跨語言迴文"
  ],
  "lang": "跨語言",
  "lang_code": "mul",
  "pos": "symbol",
  "pos_title": "符號",
  "senses": [
    {
      "categories": [
        "ISO 639-3"
      ],
      "glosses": [
        "(國際標準) ISO 639-3 語言代碼，表示閩南語。"
      ]
    }
  ],
  "word": "nan"
}