"南大洋" meaning in Japanese

{
  "forms": [
    {
      "form": "南大洋 ^",
      "ruby": [
        [
          "南",
          "なん"
        ],
        [
          "大",
          "たい"
        ],
        [
          "洋",
          "よう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Nantaiyō",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "Nantaiyau",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "なんたいやう",
      "roman": "Nantaiyau",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "なんたいよう",
        "hhira": "なんたいやう"
      },
      "expansion": "南(なん)大(たい)洋(よう) • (Nantaiyō) ^(←なんたいやう (Nantaiyau)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "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 3 kanji",
          "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 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Oceans",
          "orig": "ja:Oceans",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "the Southern Ocean"
      ],
      "id": "en-南大洋-ja-name-c-sWRXg9",
      "links": [
        [
          "Southern Ocean",
          "Southern Ocean"
        ]
      ],
      "raw_glosses": [
        "(rare) the Southern Ocean"
      ],
      "synonyms": [
        {
          "roman": "nankyokukai",
          "ruby": [
            [
              "南極海",
              "なんきょくかい"
            ]
          ],
          "word": "南極海"
        },
        {
          "roman": "nanpyōyō",
          "ruby": [
            [
              "南氷洋",
              "なんぴょうよう"
            ]
          ],
          "word": "南氷洋"
        }
      ],
      "tags": [
        "rare"
      ]
    }
  ],
  "word": "南大洋"
}

{
  "forms": [
    {
      "form": "南大洋 ^",
      "ruby": [
        [
          "南",
          "なん"
        ],
        [
          "大",
          "たい"
        ],
        [
          "洋",
          "よう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Nantaiyō",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "Nantaiyau",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "なんたいやう",
      "roman": "Nantaiyau",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "2": "なんたいよう",
        "hhira": "なんたいやう"
      },
      "expansion": "南(なん)大(たい)洋(よう) • (Nantaiyō) ^(←なんたいやう (Nantaiyau)?)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese proper nouns",
        "Japanese terms read with on'yomi",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms spelled with 南 read as なん",
        "Japanese terms spelled with 大 read as たい",
        "Japanese terms spelled with 洋 read as よう",
        "Japanese terms with 3 kanji",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with rare senses",
        "Japanese terms with redundant sortkeys",
        "Pages with 2 entries",
        "Pages with entries",
        "ja:Oceans"
      ],
      "glosses": [
        "the Southern Ocean"
      ],
      "links": [
        [
          "Southern Ocean",
          "Southern Ocean"
        ]
      ],
      "raw_glosses": [
        "(rare) the Southern Ocean"
      ],
      "tags": [
        "rare"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "nankyokukai",
      "ruby": [
        [
          "南極海",
          "なんきょくかい"
        ]
      ],
      "word": "南極海"
    },
    {
      "roman": "nanpyōyō",
      "ruby": [
        [
          "南氷洋",
          "なんぴょうよう"
        ]
      ],
      "word": "南氷洋"
    }
  ],
  "word": "南大洋"
}