"Bir" meaning in Luxembourgish

{
  "forms": [
    {
      "form": "Biren",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "Bir f (plural Biren)",
      "name": "lb-noun"
    }
  ],
  "lang": "Luxembourgish",
  "lang_code": "lb",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "pear",
          "word": "Bier"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Luxembourgish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Superseded spelling of Bier (“pear”)."
      ],
      "id": "en-Bir-lb-noun-hPiujHke",
      "links": [
        [
          "Bier",
          "Bier#Luxembourgish"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic",
        "feminine"
      ]
    }
  ],
  "word": "Bir"
}

{
  "forms": [
    {
      "form": "Biren",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "Bir f (plural Biren)",
      "name": "lb-noun"
    }
  ],
  "lang": "Luxembourgish",
  "lang_code": "lb",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "pear",
          "word": "Bier"
        }
      ],
      "categories": [
        "Luxembourgish entries with incorrect language header",
        "Luxembourgish feminine nouns",
        "Luxembourgish lemmas",
        "Luxembourgish nouns",
        "Luxembourgish superseded forms"
      ],
      "glosses": [
        "Superseded spelling of Bier (“pear”)."
      ],
      "links": [
        [
          "Bier",
          "Bier#Luxembourgish"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic",
        "feminine"
      ]
    }
  ],
  "word": "Bir"
}