"公子" meaning in Japanese

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "lzh",
        "3": "公子",
        "lit": "duke's son",
        "sort": "こうし"
      },
      "expansion": "Literary Chinese 公子 (gōngzǐ, literally “duke's son”)",
      "name": "der"
    }
  ],
  "etymology_text": "Literary Chinese 公子 (gōngzǐ, literally “duke's son”)",
  "forms": [
    {
      "form": "公子",
      "ruby": [
        [
          "公",
          "こう"
        ],
        [
          "子",
          "し"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōshi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうし"
      },
      "expansion": "公(こう)子(し) • (kōshi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "公女"
        }
      ],
      "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 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": "topical",
          "langcode": "ja",
          "name": "Male people",
          "orig": "ja:Male people",
          "parents": [
            "Male",
            "People",
            "Gender",
            "Human",
            "Biology",
            "Psychology",
            "Sociology",
            "All topics",
            "Sciences",
            "Social sciences",
            "Fundamental",
            "Society"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Nobility",
          "orig": "ja:Nobility",
          "parents": [
            "High society",
            "People",
            "Society",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the son of a duke in China or Vietnam; compare 王子 (son of a king) and 皇子 (son of an emperor)"
      ],
      "id": "en-公子-ja-noun-aNEvW82B",
      "links": [
        [
          "王子",
          "王子#Japanese"
        ],
        [
          "皇子",
          "皇子#Japanese"
        ]
      ],
      "raw_glosses": [
        "(historical) the son of a duke in China or Vietnam; compare 王子 (son of a king) and 皇子 (son of an emperor)"
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーし"
    },
    {
      "ipa": "[ko̞ːɕi]"
    }
  ],
  "word": "公子"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "lzh",
        "3": "公子",
        "lit": "duke's son",
        "sort": "こうし"
      },
      "expansion": "Literary Chinese 公子 (gōngzǐ, literally “duke's son”)",
      "name": "der"
    }
  ],
  "etymology_text": "Literary Chinese 公子 (gōngzǐ, literally “duke's son”)",
  "forms": [
    {
      "form": "公子",
      "ruby": [
        [
          "公",
          "こう"
        ],
        [
          "子",
          "し"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kōshi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "こうし"
      },
      "expansion": "公(こう)子(し) • (kōshi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "antonyms": [
        {
          "word": "公女"
        }
      ],
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms derived from Literary Chinese",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with historical senses",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "ja:Male people",
        "ja:Nobility"
      ],
      "glosses": [
        "the son of a duke in China or Vietnam; compare 王子 (son of a king) and 皇子 (son of an emperor)"
      ],
      "links": [
        [
          "王子",
          "王子#Japanese"
        ],
        [
          "皇子",
          "皇子#Japanese"
        ]
      ],
      "raw_glosses": [
        "(historical) the son of a duke in China or Vietnam; compare 王子 (son of a king) and 皇子 (son of an emperor)"
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "sounds": [
    {
      "other": "こーし"
    },
    {
      "ipa": "[ko̞ːɕi]"
    }
  ],
  "word": "公子"
}

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