"降誕祭" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "降誕",
        "3": "祭",
        "t1": "regal birth",
        "t2": "festival",
        "tr1": "kōtan",
        "tr2": "sai"
      },
      "expansion": "降誕 (kōtan, “regal birth”) + 祭 (sai, “festival”)",
      "name": "com"
    }
  ],
  "etymology_text": "降誕 (kōtan, “regal birth”) + 祭 (sai, “festival”).",
  "forms": [
    {
      "form": "降誕祭",
      "ruby": [
        [
          "降",
          "こう"
        ],
        [
          "誕",
          "たん"
        ],
        [
          "祭",
          "さい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōtansai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kautansai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かうたんさい",
      "roman": "kautansai",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうたんさい",
        "hhira": "かうたんさい"
      },
      "expansion": "降(こう)誕(たん)祭(さい) • (kōtansai) ^(←かうたんさい (kautansai)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Christmas",
          "word": "キリスト降誕祭"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Short for キリスト降誕祭: Christmas"
      ],
      "id": "en-降誕祭-ja-noun-jkxRiT1u",
      "links": [
        [
          "キリスト降誕祭",
          "キリスト降誕祭#Japanese"
        ],
        [
          "Christmas",
          "Christmas"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーたんさい"
    },
    {
      "ipa": "[ko̞ːtã̠ɰ̃sa̠i]"
    }
  ],
  "word": "降誕祭"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "降誕",
        "3": "祭",
        "t1": "regal birth",
        "t2": "festival",
        "tr1": "kōtan",
        "tr2": "sai"
      },
      "expansion": "降誕 (kōtan, “regal birth”) + 祭 (sai, “festival”)",
      "name": "com"
    }
  ],
  "etymology_text": "降誕 (kōtan, “regal birth”) + 祭 (sai, “festival”).",
  "forms": [
    {
      "form": "降誕祭",
      "ruby": [
        [
          "降",
          "こう"
        ],
        [
          "誕",
          "たん"
        ],
        [
          "祭",
          "さい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōtansai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kautansai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かうたんさい",
      "roman": "kautansai",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうたんさい",
        "hhira": "かうたんさい"
      },
      "expansion": "降(こう)誕(たん)祭(さい) • (kōtansai) ^(←かうたんさい (kautansai)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Christmas",
          "word": "キリスト降誕祭"
        }
      ],
      "categories": [
        "Japanese compound terms",
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese short forms",
        "Japanese terms spelled with sixth grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with three Han script characters"
      ],
      "glosses": [
        "Short for キリスト降誕祭: Christmas"
      ],
      "links": [
        [
          "キリスト降誕祭",
          "キリスト降誕祭#Japanese"
        ],
        [
          "Christmas",
          "Christmas"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーたんさい"
    },
    {
      "ipa": "[ko̞ːtã̠ɰ̃sa̠i]"
    }
  ],
  "word": "降誕祭"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "降誕祭"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "降誕祭",
  "trace": "started on line 2, detected on line 2"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "降誕祭"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "降誕祭",
  "trace": ""
}