"Западный Буг" meaning in Russe

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms propres en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Russe",
      "orig": "russe",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de западный, zapadnyï (« occidental ») et de Буг, Bug (« Boug »)."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "name",
  "pos_title": "Nom propre",
  "raw_tags": [
    "Zapadnyj Bug"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Cours d’eau de Biélorussie en russe",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Cours d’eau de Pologne en russe",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Cours d’eau d’Ukraine en russe",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Wiktionnaire:Exemples manquants en russe",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Boug occidental."
      ],
      "id": "fr-Западный_Буг-ru-name-UdQbRWtV",
      "raw_tags": [
        "Cours d’eau"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\zapədnɨɪ̯ ˈbuk\\"
    }
  ],
  "tags": [
    "inanimate",
    "masculine"
  ],
  "word": "Западный Буг"
}

{
  "categories": [
    "Compositions en russe",
    "Noms propres en russe",
    "russe"
  ],
  "etymology_texts": [
    "Composé de западный, zapadnyï (« occidental ») et de Буг, Bug (« Boug »)."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "name",
  "pos_title": "Nom propre",
  "raw_tags": [
    "Zapadnyj Bug"
  ],
  "senses": [
    {
      "categories": [
        "Cours d’eau de Biélorussie en russe",
        "Cours d’eau de Pologne en russe",
        "Cours d’eau d’Ukraine en russe",
        "Wiktionnaire:Exemples manquants en russe"
      ],
      "glosses": [
        "Boug occidental."
      ],
      "raw_tags": [
        "Cours d’eau"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\zapədnɨɪ̯ ˈbuk\\"
    }
  ],
  "tags": [
    "inanimate",
    "masculine"
  ],
  "word": "Западный Буг"
}