"trìplice fruntiera" meaning in Corse

{
  "categories": [
    {
      "kind": "other",
      "name": "Genres manquants en corse",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en corse",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Corse",
      "orig": "corse",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Corse",
  "lang_code": "co",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "raw_tags": [
    "genre à préciser : {{m}}, {{f}}, {{mf}}, {{n}} ?"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en corse de la géographie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Tripoint."
      ],
      "id": "fr-trìplice_fruntiera-co-noun-HmzQZdsF",
      "topics": [
        "geography"
      ]
    }
  ],
  "word": "trìplice fruntiera"
}

{
  "categories": [
    "Genres manquants en corse",
    "Locutions nominales en corse",
    "corse"
  ],
  "lang": "Corse",
  "lang_code": "co",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "raw_tags": [
    "genre à préciser : {{m}}, {{f}}, {{mf}}, {{n}} ?"
  ],
  "senses": [
    {
      "categories": [
        "Lexique en corse de la géographie"
      ],
      "glosses": [
        "Tripoint."
      ],
      "topics": [
        "geography"
      ]
    }
  ],
  "word": "trìplice fruntiera"
}