"bm." meaning in Norwegian

{
  "head_templates": [
    {
      "args": {
        "1": "no",
        "2": "noun"
      },
      "expansion": "bm.",
      "name": "head"
    }
  ],
  "lang": "Norwegian",
  "lang_code": "no",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "bokmål"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Norwegian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Norwegian links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of bokmål."
      ],
      "id": "en-bm.-no-noun-BR4gmdXV",
      "links": [
        [
          "bokmål",
          "bokmål#Norwegian"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "word": "bm."
}

{
  "head_templates": [
    {
      "args": {
        "1": "no",
        "2": "noun"
      },
      "expansion": "bm.",
      "name": "head"
    }
  ],
  "lang": "Norwegian",
  "lang_code": "no",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "bokmål"
        }
      ],
      "categories": [
        "Norwegian abbreviations",
        "Norwegian entries with incorrect language header",
        "Norwegian lemmas",
        "Norwegian links with redundant wikilinks",
        "Norwegian nouns",
        "Norwegian terms spelled with .",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Abbreviation of bokmål."
      ],
      "links": [
        [
          "bokmål",
          "bokmål#Norwegian"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ]
    }
  ],
  "word": "bm."
}