"極光" meaning in Japanese

{
  "forms": [
    {
      "form": "極光",
      "head_nr": 1,
      "ruby": [
        [
          "極",
          "きょっ"
        ],
        [
          "光",
          "こう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kyokkō",
      "head_nr": 1,
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kyokukwau",
      "head_nr": 1,
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "きよくくわう",
      "head_nr": 1,
      "roman": "kyokukwau",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "きょくこう",
      "head_nr": 2,
      "tags": [
        "alternative",
        "hiragana"
      ]
    },
    {
      "form": "kyokukō",
      "head_nr": 2,
      "tags": [
        "Rōmaji"
      ]
    },
    {
      "form": "きよくくわう",
      "head_nr": 2,
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "きょっこう",
        "hhira": "きよくくわう"
      },
      "expansion": "極(きょっ)光(こう) • (kyokkō) ^(←きよくくわう (kyokukwau)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "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 non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese words with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Atmospheric phenomena",
          "orig": "ja:Atmospheric phenomena",
          "parents": [
            "Atmosphere",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of オーロラ (ōrora, “aurora”)"
      ],
      "head_nr": 2,
      "id": "en-極光-ja-noun-QzcJj-D5",
      "links": [
        [
          "オーロラ",
          "オーロラ#Japanese"
        ],
        [
          "aurora",
          "aurora"
        ]
      ],
      "synonyms": [
        {
          "extra": "ōrora, “aurora”",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "オーロラ"
        }
      ]
    }
  ],
  "sounds": [
    {
      "other": "きょっこー"
    },
    {
      "ipa": "[kʲo̞k̚ko̞ː]"
    },
    {
      "other": "きょくこー"
    },
    {
      "ipa": "[kʲo̞kɯ̟̊ᵝko̞ː]"
    }
  ],
  "word": "極光"
}

{
  "forms": [
    {
      "form": "極光",
      "head_nr": 1,
      "ruby": [
        [
          "極",
          "きょっ"
        ],
        [
          "光",
          "こう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kyokkō",
      "head_nr": 1,
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kyokukwau",
      "head_nr": 1,
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "きよくくわう",
      "head_nr": 1,
      "roman": "kyokukwau",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "きょくこう",
      "head_nr": 2,
      "tags": [
        "alternative",
        "hiragana"
      ]
    },
    {
      "form": "kyokukō",
      "head_nr": 2,
      "tags": [
        "Rōmaji"
      ]
    },
    {
      "form": "きよくくわう",
      "head_nr": 2,
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "きょっこう",
        "hhira": "きよくくわう"
      },
      "expansion": "極(きょっ)光(こう) • (kyokkō) ^(←きよくくわう (kyokukwau)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with fourth grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "Japanese words with multiple readings",
        "ja:Atmospheric phenomena"
      ],
      "glosses": [
        "Synonym of オーロラ (ōrora, “aurora”)"
      ],
      "head_nr": 2,
      "links": [
        [
          "オーロラ",
          "オーロラ#Japanese"
        ],
        [
          "aurora",
          "aurora"
        ]
      ],
      "synonyms": [
        {
          "extra": "ōrora, “aurora”",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "オーロラ"
        }
      ]
    }
  ],
  "sounds": [
    {
      "other": "きょっこー"
    },
    {
      "ipa": "[kʲo̞k̚ko̞ː]"
    },
    {
      "other": "きょくこー"
    },
    {
      "ipa": "[kʲo̞kɯ̟̊ᵝko̞ː]"
    }
  ],
  "word": "極光"
}