"rifler" meaning in Norwegian Bokmål

{
  "head_templates": [
    {
      "args": {
        "1": "nb",
        "2": "noun form",
        "g": "m",
        "g2": "f"
      },
      "expansion": "rifler m or f",
      "name": "head"
    }
  ],
  "lang": "Norwegian Bokmål",
  "lang_code": "nb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Norwegian Bokmål entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "rifle"
        }
      ],
      "glosses": [
        "indefinite plural of rifle"
      ],
      "id": "en-rifler-nb-noun-ps5zmHqV",
      "links": [
        [
          "rifle",
          "rifle#Norwegian Bokmål"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "indefinite",
        "masculine",
        "plural"
      ]
    }
  ],
  "word": "rifler"
}

{
  "categories": [
    "Old French entries with incorrect language header",
    "Old French first group verbs",
    "Old French lemmas",
    "Old French terms borrowed from Frankish",
    "Old French terms borrowed from Old High German",
    "Old French terms derived from Frankish",
    "Old French terms derived from Old High German",
    "Old French terms derived from Proto-Germanic",
    "Old French verbs",
    "Old French verbs ending in -er",
    "Old French verbs with weak-a preterite"
  ],
  "head_templates": [
    {
      "args": {
        "1": "nb",
        "2": "noun form",
        "g": "m",
        "g2": "f"
      },
      "expansion": "rifler m or f",
      "name": "head"
    }
  ],
  "lang": "Norwegian Bokmål",
  "lang_code": "nb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Norwegian Bokmål entries with incorrect language header",
        "Norwegian Bokmål non-lemma forms",
        "Norwegian Bokmål noun forms"
      ],
      "form_of": [
        {
          "word": "rifle"
        }
      ],
      "glosses": [
        "indefinite plural of rifle"
      ],
      "links": [
        [
          "rifle",
          "rifle#Norwegian Bokmål"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "indefinite",
        "masculine",
        "plural"
      ]
    }
  ],
  "word": "rifler"
}