"BI" meaning in Portuguese

{
  "forms": [
    {
      "form": "BIs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#s"
      },
      "expansion": "BI m (plural BIs)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "ID card",
          "word": "bilhete de identidade"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 6 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of bilhete de identidade (“ID card”)."
      ],
      "id": "en-BI-pt-noun-Hud6V0ia",
      "links": [
        [
          "bilhete de identidade",
          "bilhete de identidade#Portuguese"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "masculine"
      ]
    }
  ],
  "word": "BI"
}

{
  "forms": [
    {
      "form": "BIs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "#s"
      },
      "expansion": "BI m (plural BIs)",
      "name": "pt-noun"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "ID card",
          "word": "bilhete de identidade"
        }
      ],
      "categories": [
        "Pages with 6 entries",
        "Pages with entries",
        "Portuguese countable nouns",
        "Portuguese entries with incorrect language header",
        "Portuguese initialisms",
        "Portuguese lemmas",
        "Portuguese links with redundant wikilinks",
        "Portuguese masculine nouns",
        "Portuguese nouns",
        "Portuguese nouns with red links in their headword lines"
      ],
      "glosses": [
        "Initialism of bilhete de identidade (“ID card”)."
      ],
      "links": [
        [
          "bilhete de identidade",
          "bilhete de identidade#Portuguese"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "masculine"
      ]
    }
  ],
  "word": "BI"
}