"bir" meaning in Iban

{
  "etymology_templates": [
    {
      "args": {
        "1": "iba",
        "2": "en",
        "3": "beer"
      },
      "expansion": "Borrowed from English beer",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English beer.",
  "head_templates": [
    {
      "args": {
        "1": "iba",
        "2": "noun"
      },
      "expansion": "bir",
      "name": "head"
    }
  ],
  "lang": "Iban",
  "lang_code": "iba",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Iban entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 27 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "iba",
          "name": "Beverages",
          "orig": "iba:Beverages",
          "parents": [
            "Drinking",
            "Food and drink",
            "Liquids",
            "Human behaviour",
            "All topics",
            "Matter",
            "Human",
            "Fundamental",
            "Chemistry",
            "Nature",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "beer"
      ],
      "id": "en-bir-iba-noun-HYtM-FTN",
      "links": [
        [
          "beer",
          "beer"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bir/"
    }
  ],
  "word": "bir"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "iba",
        "2": "en",
        "3": "beer"
      },
      "expansion": "Borrowed from English beer",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from English beer.",
  "head_templates": [
    {
      "args": {
        "1": "iba",
        "2": "noun"
      },
      "expansion": "bir",
      "name": "head"
    }
  ],
  "lang": "Iban",
  "lang_code": "iba",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Iban entries with incorrect language header",
        "Iban lemmas",
        "Iban nouns",
        "Iban terms borrowed from English",
        "Iban terms derived from English",
        "Pages with 27 entries",
        "Pages with entries",
        "iba:Beverages"
      ],
      "glosses": [
        "beer"
      ],
      "links": [
        [
          "beer",
          "beer"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bir/"
    }
  ],
  "word": "bir"
}