"考古学" meaning in Japanese

{
  "forms": [
    {
      "form": "考古学",
      "ruby": [
        [
          "考",
          "こう"
        ],
        [
          "古",
          "こ"
        ],
        [
          "学",
          "がく"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōkogaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kaukogaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かうこがく",
      "roman": "kaukogaku",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうこがく",
        "hhira": "かうこがく"
      },
      "expansion": "考(こう)古(こ)学(がく) • (kōkogaku) ^(←かうこがく (kaukogaku)?)",
      "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "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": "Pages with raw sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Archaeology",
          "orig": "ja:Archaeology",
          "parents": [
            "Anthropology",
            "Sciences",
            "Social sciences",
            "Zoology",
            "All topics",
            "Society",
            "Biology",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "archaeology"
      ],
      "id": "en-考古学-ja-noun-7YLnmx3y",
      "links": [
        [
          "archaeology",
          "archaeology"
        ]
      ],
      "wikipedia": [
        "ja:考古学"
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーこがく"
    },
    {
      "ipa": "[ko̞ːko̞ɡa̠kɯ̟ᵝ]"
    }
  ],
  "word": "考古学"
}

{
  "forms": [
    {
      "form": "考古学",
      "ruby": [
        [
          "考",
          "こう"
        ],
        [
          "古",
          "こ"
        ],
        [
          "学",
          "がく"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōkogaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kaukogaku",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かうこがく",
      "roman": "kaukogaku",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうこがく",
        "hhira": "かうこがく"
      },
      "expansion": "考(こう)古(こ)学(がく) • (kōkogaku) ^(←かうこがく (kaukogaku)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese entries with topic categories using raw markup",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with first 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 three Han script characters",
        "Pages with raw sortkeys",
        "ja:Archaeology"
      ],
      "glosses": [
        "archaeology"
      ],
      "links": [
        [
          "archaeology",
          "archaeology"
        ]
      ],
      "wikipedia": [
        "ja:考古学"
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーこがく"
    },
    {
      "ipa": "[ko̞ːko̞ɡa̠kɯ̟ᵝ]"
    }
  ],
  "word": "考古学"
}

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

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