"滄海" meaning in Japanese

{
  "forms": [
    {
      "form": "滄海 ^",
      "ruby": [
        [
          "滄",
          "そう"
        ],
        [
          "海",
          "かい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "sōkai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "saukai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "さうかい",
      "roman": "saukai",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "滄海",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    },
    {
      "form": "蒼海",
      "tags": [
        "alternative",
        "kanji"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "そうかい",
        "hhira": "さうかい"
      },
      "expansion": "滄(そう)海(かい) • (sōkai) ^(←さうかい (saukai)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms read with on'yomi",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with Heiban pitch accent (Tōkyō)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "roman": "sōkaisōden",
          "ruby": [
            [
              "滄海桑田",
              "そうかいそうでん"
            ]
          ],
          "word": "滄海桑田"
        },
        {
          "roman": "sōkai henjite sōden to naru",
          "ruby": [
            [
              "滄",
              "そう"
            ],
            [
              "海",
              "かい"
            ],
            [
              "変",
              "へん"
            ],
            [
              "桑",
              "そう"
            ],
            [
              "田",
              "でん"
            ]
          ],
          "word": "滄海変じて桑田となる"
        },
        {
          "roman": "sōdensōkai",
          "ruby": [
            [
              "桑",
              "そう"
            ],
            [
              "田",
              "でん"
            ],
            [
              "滄",
              "そう"
            ],
            [
              "海",
              "かい"
            ]
          ],
          "word": "桑田滄海"
        },
        {
          "roman": "sōden henjite sōkai to naru",
          "ruby": [
            [
              "桑",
              "そう"
            ],
            [
              "田",
              "でん"
            ],
            [
              "変",
              "へん"
            ],
            [
              "滄",
              "そう"
            ],
            [
              "海",
              "かい"
            ]
          ],
          "word": "桑田変じて滄海となる"
        }
      ],
      "glosses": [
        "blue waters; vast ocean"
      ],
      "id": "en-滄海-ja-noun--Ba3wuGF",
      "links": [
        [
          "blue",
          "blue"
        ],
        [
          "water",
          "water"
        ],
        [
          "vast",
          "vast"
        ],
        [
          "ocean",
          "ocean"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "そーかい"
    },
    {
      "ipa": "[so̞ːka̠i]"
    }
  ],
  "word": "滄海"
}

{
  "derived": [
    {
      "roman": "sōkaisōden",
      "ruby": [
        [
          "滄海桑田",
          "そうかいそうでん"
        ]
      ],
      "word": "滄海桑田"
    },
    {
      "roman": "sōkai henjite sōden to naru",
      "ruby": [
        [
          "滄",
          "そう"
        ],
        [
          "海",
          "かい"
        ],
        [
          "変",
          "へん"
        ],
        [
          "桑",
          "そう"
        ],
        [
          "田",
          "でん"
        ]
      ],
      "word": "滄海変じて桑田となる"
    },
    {
      "roman": "sōdensōkai",
      "ruby": [
        [
          "桑",
          "そう"
        ],
        [
          "田",
          "でん"
        ],
        [
          "滄",
          "そう"
        ],
        [
          "海",
          "かい"
        ]
      ],
      "word": "桑田滄海"
    },
    {
      "roman": "sōden henjite sōkai to naru",
      "ruby": [
        [
          "桑",
          "そう"
        ],
        [
          "田",
          "でん"
        ],
        [
          "変",
          "へん"
        ],
        [
          "滄",
          "そう"
        ],
        [
          "海",
          "かい"
        ]
      ],
      "word": "桑田変じて滄海となる"
    }
  ],
  "forms": [
    {
      "form": "滄海 ^",
      "ruby": [
        [
          "滄",
          "そう"
        ],
        [
          "海",
          "かい"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "sōkai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "saukai",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "さうかい",
      "roman": "saukai",
      "tags": [
        "hiragana",
        "historical"
      ]
    },
    {
      "form": "滄海",
      "tags": [
        "alternative",
        "kanji",
        "kyūjitai"
      ]
    },
    {
      "form": "蒼海",
      "tags": [
        "alternative",
        "kanji"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "そうかい",
        "hhira": "さうかい"
      },
      "expansion": "滄(そう)海(かい) • (sōkai) ^(←さうかい (saukai)?)",
      "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 read with on'yomi",
        "Japanese terms spelled with hyōgai kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with 海 read as かい",
        "Japanese terms spelled with 滄 read as そう",
        "Japanese terms with 2 kanji",
        "Japanese terms with Heiban pitch accent (Tōkyō)",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with IPA pronunciation with pitch accent",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "glosses": [
        "blue waters; vast ocean"
      ],
      "links": [
        [
          "blue",
          "blue"
        ],
        [
          "water",
          "water"
        ],
        [
          "vast",
          "vast"
        ],
        [
          "ocean",
          "ocean"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "other": "そーかい"
    },
    {
      "ipa": "[so̞ːka̠i]"
    }
  ],
  "word": "滄海"
}