"中世" meaning in Japanese

{
  "forms": [
    {
      "form": "中世",
      "ruby": [
        [
          "中",
          "ちゅう"
        ],
        [
          "世",
          "せい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "chūsei",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ちゅうせい"
      },
      "expansion": "中(ちゅう)世(せい) • (chūsei)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "60 40",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "57 43",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "57 43",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Middle Ages"
      ],
      "id": "en-中世-ja-noun-MxVwjcLr",
      "links": [
        [
          "Middle Ages",
          "Middle Ages"
        ]
      ]
    },
    {
      "alt_of": [
        {
          "extra": "Late Middle Japanese",
          "word": "中世日本語"
        }
      ],
      "glosses": [
        "Short for 中世日本語: Late Middle Japanese"
      ],
      "id": "en-中世-ja-noun-xHwPHzay",
      "links": [
        [
          "中世日本語",
          "中世日本語#Japanese"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕɨᵝːse̞ː]"
    }
  ],
  "word": "中世"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms spelled with first grade kanji",
    "Japanese terms spelled with third grade kanji",
    "Japanese terms with IPA pronunciation",
    "Japanese terms with redundant sortkeys",
    "Japanese terms written with two Han script characters"
  ],
  "forms": [
    {
      "form": "中世",
      "ruby": [
        [
          "中",
          "ちゅう"
        ],
        [
          "世",
          "せい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "chūsei",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ちゅうせい"
      },
      "expansion": "中(ちゅう)世(せい) • (chūsei)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Middle Ages"
      ],
      "links": [
        [
          "Middle Ages",
          "Middle Ages"
        ]
      ]
    },
    {
      "alt_of": [
        {
          "extra": "Late Middle Japanese",
          "word": "中世日本語"
        }
      ],
      "glosses": [
        "Short for 中世日本語: Late Middle Japanese"
      ],
      "links": [
        [
          "中世日本語",
          "中世日本語#Japanese"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕɨᵝːse̞ː]"
    }
  ],
  "word": "中世"
}

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