"лаа" meaning in Mongol

{
  "categories": [
    {
      "kind": "other",
      "name": "Noms communs en mongol",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vie domestique en mongol",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mongol",
      "orig": "mongol",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Mongol",
  "lang_code": "mn",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Chandelle."
      ],
      "id": "fr-лаа-mn-noun-SF~Q4qvD"
    }
  ],
  "sounds": [
    {
      "ipa": "\\laː\\"
    }
  ],
  "word": "лаа"
}

{
  "categories": [
    "Noms communs en mongol",
    "Vie domestique en mongol",
    "mongol"
  ],
  "lang": "Mongol",
  "lang_code": "mn",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "glosses": [
        "Chandelle."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\laː\\"
    }
  ],
  "word": "лаа"
}