"Mare Magnum" meaning in Latin

{
  "forms": [
    {
      "form": "Maris Magnī",
      "tags": [
        "genitive"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Mare<3.N.I.pure> Magnum<+>"
      },
      "expansion": "Mare Magnum n sg (genitive Maris Magnī); third declension",
      "name": "la-proper noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin neuter nouns in the third declension",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "la",
          "name": "Gulfs",
          "orig": "la:Gulfs",
          "parents": [
            "Places",
            "Water",
            "Names",
            "Liquids",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Matter",
            "Fundamental",
            "Nouns",
            "Chemistry",
            "Nature",
            "Lemmas",
            "Sciences"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "la",
          "name": "Seas",
          "orig": "la: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"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Mediterranean Sea; Literally, “Great Sea”: A sea, a gulf of the North Atlantic, in between Southern Europe and North Africa, reaching the Levant, of Western Asia"
      ],
      "id": "en-Mare_Magnum-la-name-2xeJ0jxa",
      "links": [
        [
          "Mediterranean Sea",
          "Mediterranean Sea#English"
        ],
        [
          "gulf",
          "gulf"
        ],
        [
          "North Atlantic",
          "North Atlantic#English"
        ],
        [
          "Southern Europe",
          "Southern Europe#English"
        ],
        [
          "North Africa",
          "North Africa#English"
        ],
        [
          "Levant",
          "Levant#English"
        ],
        [
          "Western Asia",
          "Western Asia#English"
        ]
      ],
      "synonyms": [
        {
          "word": "Mare Internum"
        },
        {
          "tags": [
            "Late-Latin"
          ],
          "word": "Mare Mediterraneum"
        },
        {
          "word": "Mare Nostrum"
        }
      ],
      "tags": [
        "declension-3",
        "neuter",
        "singular"
      ]
    }
  ],
  "word": "Mare Magnum"
}

{
  "forms": [
    {
      "form": "Maris Magnī",
      "tags": [
        "genitive"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Mare<3.N.I.pure> Magnum<+>"
      },
      "expansion": "Mare Magnum n sg (genitive Maris Magnī); third declension",
      "name": "la-proper noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Latin entries with incorrect language header",
        "Latin lemmas",
        "Latin multiword terms",
        "Latin neuter nouns",
        "Latin neuter nouns in the third declension",
        "Latin nouns with red links in their inflection tables",
        "Latin proper nouns",
        "Latin third declension nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "la:Gulfs",
        "la:Seas"
      ],
      "glosses": [
        "Mediterranean Sea; Literally, “Great Sea”: A sea, a gulf of the North Atlantic, in between Southern Europe and North Africa, reaching the Levant, of Western Asia"
      ],
      "links": [
        [
          "Mediterranean Sea",
          "Mediterranean Sea#English"
        ],
        [
          "gulf",
          "gulf"
        ],
        [
          "North Atlantic",
          "North Atlantic#English"
        ],
        [
          "Southern Europe",
          "Southern Europe#English"
        ],
        [
          "North Africa",
          "North Africa#English"
        ],
        [
          "Levant",
          "Levant#English"
        ],
        [
          "Western Asia",
          "Western Asia#English"
        ]
      ],
      "tags": [
        "declension-3",
        "neuter",
        "singular"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Mare Internum"
    },
    {
      "tags": [
        "Late-Latin"
      ],
      "word": "Mare Mediterraneum"
    },
    {
      "word": "Mare Nostrum"
    }
  ],
  "word": "Mare Magnum"
}