"Gwiana" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Départements de France en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms propres en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Régions de France en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Transcription du mot français, lui-même d'origine amérindienne (Guaiyana)."
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "glosses": [
        "Guyane (département et région d’outre-mer français)."
      ],
      "id": "fr-Gwiana-br-name-nnRpk-in"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɡɥiˈɑːna\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "Gwiana"
}

{
  "categories": [
    "Départements de France en breton",
    "Noms propres en breton",
    "Régions de France en breton",
    "breton"
  ],
  "etymology_texts": [
    "Transcription du mot français, lui-même d'origine amérindienne (Guaiyana)."
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "name",
  "pos_title": "Nom propre",
  "senses": [
    {
      "glosses": [
        "Guyane (département et région d’outre-mer français)."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɡɥiˈɑːna\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "Gwiana"
}