"Terra cava" meaning in All languages combined

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en italien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms propres en italien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Italien",
      "orig": "italien",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de terra et de cava."
  ],
  "lang": "Italien",
  "lang_code": "it",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en italien de la science-fiction",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en italien",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Terre creuse, planète Terre qui serait creuse et dont la surface interne serait habitable."
      ],
      "id": "fr-Terra_cava-it-name-5KLv2SUN",
      "raw_tags": [
        "Science-fiction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈtɛr.ra ˈka.va\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "Terra cava"
}

{
  "categories": [
    "Compositions en italien",
    "Noms propres en italien",
    "italien"
  ],
  "etymology_texts": [
    "Composé de terra et de cava."
  ],
  "lang": "Italien",
  "lang_code": "it",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "categories": [
        "Lexique en italien de la science-fiction",
        "Wiktionnaire:Exemples manquants en italien"
      ],
      "glosses": [
        "Terre creuse, planète Terre qui serait creuse et dont la surface interne serait habitable."
      ],
      "raw_tags": [
        "Science-fiction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ˈtɛr.ra ˈka.va\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "Terra cava"
}