"世代交代" meaning in 日语

{
  "categories": [
    {
      "kind": "other",
      "name": "帶有非標準語言標題的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語複合詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有三年級漢字的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有二年級漢字的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有四個漢字的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_text": "世(せ)代(だい) (sedai) + 交代(こうたい) (kōtai)的組詞。",
  "forms": [
    {
      "form": "世代交代",
      "ruby": [
        [
          "世",
          "せ"
        ],
        [
          "代",
          "だい"
        ],
        [
          "交",
          "こう"
        ],
        [
          "代",
          "たい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "sedai kōtai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "せだいかうたい",
      "roman": "sedai kautai"
    }
  ],
  "lang": "日语",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日語 生物學",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "世代交替"
      ],
      "id": "zh-世代交代-ja-noun-sjdX~Yz9",
      "topics": [
        "biology"
      ]
    },
    {
      "glosses": [
        "（組織機構中）老人隱退，換成年輕人"
      ],
      "id": "zh-世代交代-ja-noun-SD9YgZ~P"
    }
  ],
  "synonyms": [
    {
      "roman": "sedai kōban",
      "ruby": [
        [
          "世",
          "せ"
        ],
        [
          "代",
          "だい"
        ],
        [
          "交番",
          "こうばん"
        ]
      ],
      "sense": "世代交替",
      "word": "世代交番"
    }
  ],
  "word": "世代交代"
}

{
  "categories": [
    "帶有非標準語言標題的頁面",
    "日語名詞",
    "日語複合詞",
    "日語詞元",
    "有1個詞條的頁面",
    "有三年級漢字的日語詞",
    "有二年級漢字的日語詞",
    "有四個漢字的日語詞",
    "有詞條的頁面"
  ],
  "etymology_text": "世(せ)代(だい) (sedai) + 交代(こうたい) (kōtai)的組詞。",
  "forms": [
    {
      "form": "世代交代",
      "ruby": [
        [
          "世",
          "せ"
        ],
        [
          "代",
          "だい"
        ],
        [
          "交",
          "こう"
        ],
        [
          "代",
          "たい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "sedai kōtai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "せだいかうたい",
      "roman": "sedai kautai"
    }
  ],
  "lang": "日语",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "日語 生物學"
      ],
      "glosses": [
        "世代交替"
      ],
      "topics": [
        "biology"
      ]
    },
    {
      "glosses": [
        "（組織機構中）老人隱退，換成年輕人"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "sedai kōban",
      "ruby": [
        [
          "世",
          "せ"
        ],
        [
          "代",
          "だい"
        ],
        [
          "交番",
          "こうばん"
        ]
      ],
      "sense": "世代交替",
      "word": "世代交番"
    }
  ],
  "word": "世代交代"
}