"七つの海" meaning in Japanese

{
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        "1": "ja",
        "2": "七つ",
        "3": "の",
        "4": "海",
        "pos2": "attributive marker",
        "t1": "seven",
        "t3": "sea",
        "tr1": "nanatsu",
        "tr2": "no",
        "tr3": "umi"
      },
      "expansion": "七つ (nanatsu, “seven”) + の (no, attributive marker) + 海 (umi, “sea”)",
      "name": "com"
    }
  ],
  "etymology_text": "七つ (nanatsu, “seven”) + の (no, attributive marker) + 海 (umi, “sea”)",
  "forms": [
    {
      "form": "七つの海",
      "ruby": [
        [
          "七",
          "なな"
        ],
        [
          "海",
          "うみ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nanatsu no umi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ななつ の うみ"
      },
      "expansion": "七(なな)つの海(うみ) • (nanatsu no umi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
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        },
        {
          "kind": "place",
          "langcode": "ja",
          "name": "Seas",
          "orig": "ja:Seas",
          "parents": [
            "Bodies of water",
            "Places",
            "Landforms",
            "Water",
            "Names",
            "Earth",
            "Liquids",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Nature",
            "Matter",
            "Fundamental",
            "Nouns",
            "Chemistry",
            "Lemmas",
            "Sciences"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Seven",
          "orig": "ja:Seven",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the seven seas"
      ],
      "id": "en-七つの海-ja-noun-scaIa47T",
      "links": [
        [
          "poetic",
          "poetic"
        ],
        [
          "seven seas",
          "seven seas"
        ]
      ],
      "raw_glosses": [
        "(poetic) the seven seas"
      ],
      "tags": [
        "poetic"
      ],
      "wikipedia": [
        "ja:七つの海"
      ]
    }
  ],
  "word": "七つの海"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ja",
        "2": "七つ",
        "3": "の",
        "4": "海",
        "pos2": "attributive marker",
        "t1": "seven",
        "t3": "sea",
        "tr1": "nanatsu",
        "tr2": "no",
        "tr3": "umi"
      },
      "expansion": "七つ (nanatsu, “seven”) + の (no, attributive marker) + 海 (umi, “sea”)",
      "name": "com"
    }
  ],
  "etymology_text": "七つ (nanatsu, “seven”) + の (no, attributive marker) + 海 (umi, “sea”)",
  "forms": [
    {
      "form": "七つの海",
      "ruby": [
        [
          "七",
          "なな"
        ],
        [
          "海",
          "うみ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nanatsu no umi",
      "tags": [
        "romanization"
      ]
    }
  ],
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    {
      "args": {
        "1": "ななつ の うみ"
      },
      "expansion": "七(なな)つの海(うみ) • (nanatsu no umi)",
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  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
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      "glosses": [
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  "word": "七つの海"
}