"учир" meaning in Mongol

{
  "categories": [
    {
      "kind": "other",
      "name": "Conjonctions en mongol",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mongol",
      "orig": "mongol",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Mongol",
  "lang_code": "mn",
  "pos": "conj",
  "pos_title": "Conjonction",
  "senses": [
    {
      "glosses": [
        "Parce que. Marque la cause."
      ],
      "id": "fr-учир-mn-conj-yPASSPu2"
    }
  ],
  "synonyms": [
    {
      "word": "учраас"
    },
    {
      "word": "тул"
    }
  ],
  "word": "учир"
}

{
  "categories": [
    "Conjonctions en mongol",
    "mongol"
  ],
  "lang": "Mongol",
  "lang_code": "mn",
  "pos": "conj",
  "pos_title": "Conjonction",
  "senses": [
    {
      "glosses": [
        "Parce que. Marque la cause."
      ]
    }
  ],
  "synonyms": [
    {
      "word": "учраас"
    },
    {
      "word": "тул"
    }
  ],
  "word": "учир"
}