"nefnifall" meaning in IJslands

{
  "abbreviations": [
    {
      "word": "Nf."
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Woorden in het IJslands",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Woorden in het IJslands met IPA-weergave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Woorden in het IJslands van lengte 9",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Zelfstandig naamwoord in het IJslands",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "IJslands",
  "lang_code": "is",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "glosses": [
        "nominatief"
      ],
      "id": "nl-nefnifall-is-noun-S6W2ceLI"
    }
  ],
  "sounds": [
    {
      "ipa": "/ ˈnɛb̥nɪˌfadl̥ /"
    }
  ],
  "word": "nefnifall"
}

{
  "abbreviations": [
    {
      "word": "Nf."
    }
  ],
  "categories": [
    "Woorden in het IJslands",
    "Woorden in het IJslands met IPA-weergave",
    "Woorden in het IJslands van lengte 9",
    "Zelfstandig naamwoord in het IJslands"
  ],
  "lang": "IJslands",
  "lang_code": "is",
  "pos": "noun",
  "pos_title": "Zelfstandig naamwoord",
  "senses": [
    {
      "glosses": [
        "nominatief"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ ˈnɛb̥nɪˌfadl̥ /"
    }
  ],
  "word": "nefnifall"
}