"真髄" meaning in Japanese

{
  "forms": [
    {
      "form": "真髄",
      "ruby": [
        [
          "真",
          "しん"
        ],
        [
          "髄",
          "ずい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shinzui",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しんずい"
      },
      "expansion": "真(しん)髄(ずい) • (shinzui)",
      "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 2 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "the spirit or essence of literature",
          "roman": "bungaku no shinzui",
          "ruby": [
            [
              "文学",
              "ぶんがく"
            ],
            [
              "真髄",
              "しんずい"
            ]
          ],
          "text": "文学の真髄",
          "type": "example"
        }
      ],
      "glosses": [
        "The spirit or soul of something: its essence, its true quality."
      ],
      "id": "en-真髄-ja-noun-mGw-TZEp",
      "links": [
        [
          "spirit",
          "spirit"
        ],
        [
          "soul",
          "soul"
        ],
        [
          "essence",
          "essence"
        ],
        [
          "quality",
          "quality"
        ]
      ],
      "raw_glosses": [
        "(figurative): The spirit or soul of something: its essence, its true quality."
      ],
      "synonyms": [
        {
          "roman": "shinzui",
          "ruby": [
            [
              "神",
              "しん"
            ],
            [
              "髄",
              "ずい"
            ]
          ],
          "word": "神髄"
        }
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "sounds": [
    {
      "other": "しんずい"
    },
    {
      "ipa": "[ɕĩnd͡zɨi]"
    }
  ],
  "word": "真髄"
}

{
  "forms": [
    {
      "form": "真髄",
      "ruby": [
        [
          "真",
          "しん"
        ],
        [
          "髄",
          "ずい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shinzui",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しんずい"
      },
      "expansion": "真(しん)髄(ずい) • (shinzui)",
      "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 secondary school kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with 2 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "the spirit or essence of literature",
          "roman": "bungaku no shinzui",
          "ruby": [
            [
              "文学",
              "ぶんがく"
            ],
            [
              "真髄",
              "しんずい"
            ]
          ],
          "text": "文学の真髄",
          "type": "example"
        }
      ],
      "glosses": [
        "The spirit or soul of something: its essence, its true quality."
      ],
      "links": [
        [
          "spirit",
          "spirit"
        ],
        [
          "soul",
          "soul"
        ],
        [
          "essence",
          "essence"
        ],
        [
          "quality",
          "quality"
        ]
      ],
      "raw_glosses": [
        "(figurative): The spirit or soul of something: its essence, its true quality."
      ],
      "tags": [
        "figuratively"
      ]
    }
  ],
  "sounds": [
    {
      "other": "しんずい"
    },
    {
      "ipa": "[ɕĩnd͡zɨi]"
    }
  ],
  "synonyms": [
    {
      "roman": "shinzui",
      "ruby": [
        [
          "神",
          "しん"
        ],
        [
          "髄",
          "ずい"
        ]
      ],
      "word": "神髄"
    }
  ],
  "word": "真髄"
}

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