"Mrtvo more" meaning in Croate

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms propres en croate",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Croate",
      "orig": "croate",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Croate",
  "lang_code": "hr",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Mers en croate",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Mer Morte."
      ],
      "id": "fr-Mrtvo_more-hr-name-Q5OpKv9C",
      "topics": [
        "geography"
      ]
    }
  ],
  "word": "Mrtvo more"
}

{
  "categories": [
    "Noms propres en croate",
    "croate"
  ],
  "lang": "Croate",
  "lang_code": "hr",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        "Mers en croate"
      ],
      "glosses": [
        "Mer Morte."
      ],
      "topics": [
        "geography"
      ]
    }
  ],
  "word": "Mrtvo more"
}