"極光" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 国際音声記号あり",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "北極光"
    },
    {
      "word": "南極光"
    }
  ],
  "forms": [
    {
      "form": "きょっこう"
    },
    {
      "form": "きょくこう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日本語 天文学",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "（海野十三『大空魔艦』）",
          "text": "空の遠くには、まだ極光が現れ、そのうつくしい七色の垂れ幕がしずかに動いてゆく。"
        }
      ],
      "glosses": [
        "オーロラ。"
      ],
      "id": "ja-極光-ja-noun-sK2HJA-n",
      "topics": [
        "astronomy"
      ]
    }
  ],
  "sounds": [
    {
      "form": "きょっこー",
      "raw_tags": [
        "東京式"
      ],
      "roman": "[kyòkkóó]",
      "tags": [
        "Heiban"
      ]
    },
    {
      "ipa": "[kʲo̞k̚ko̞ː]"
    },
    {
      "form": "きょっこー",
      "raw_tags": [
        "京阪式"
      ],
      "tags": [
        "Heiban"
      ]
    }
  ],
  "word": "極光"
}

{
  "categories": [
    "日本語",
    "日本語 名詞",
    "日本語 国際音声記号あり"
  ],
  "derived": [
    {
      "word": "北極光"
    },
    {
      "word": "南極光"
    }
  ],
  "forms": [
    {
      "form": "きょっこう"
    },
    {
      "form": "きょくこう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        "日本語 天文学"
      ],
      "examples": [
        {
          "ref": "（海野十三『大空魔艦』）",
          "text": "空の遠くには、まだ極光が現れ、そのうつくしい七色の垂れ幕がしずかに動いてゆく。"
        }
      ],
      "glosses": [
        "オーロラ。"
      ],
      "topics": [
        "astronomy"
      ]
    }
  ],
  "sounds": [
    {
      "form": "きょっこー",
      "raw_tags": [
        "東京式"
      ],
      "roman": "[kyòkkóó]",
      "tags": [
        "Heiban"
      ]
    },
    {
      "ipa": "[kʲo̞k̚ko̞ː]"
    },
    {
      "form": "きょっこー",
      "raw_tags": [
        "京阪式"
      ],
      "tags": [
        "Heiban"
      ]
    }
  ],
  "word": "極光"
}