"туған тел" meaning in Bachkir

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en bachkir",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Bachkir",
      "orig": "bachkir",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Bachkir",
  "lang_code": "ba",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en bachkir de la linguistique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Langue maternelle."
      ],
      "id": "fr-туған_тел-ba-noun-Rp0WVHDX",
      "topics": [
        "linguistic"
      ]
    }
  ],
  "word": "туған тел"
}

{
  "categories": [
    "Noms communs en bachkir",
    "bachkir"
  ],
  "lang": "Bachkir",
  "lang_code": "ba",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en bachkir de la linguistique"
      ],
      "glosses": [
        "Langue maternelle."
      ],
      "topics": [
        "linguistic"
      ]
    }
  ],
  "word": "туған тел"
}