"decennier" meaning in Suédois

{
  "categories": [
    {
      "kind": "other",
      "name": "Formes de noms communs en suédois",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Suédois",
      "orig": "suédois",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Suédois",
  "lang_code": "sv",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "decennium"
        }
      ],
      "glosses": [
        "Pluriel indéfini de decennium."
      ],
      "id": "fr-decennier-sv-noun-yV0WsRkD"
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "decennier"
}

{
  "categories": [
    "Formes de noms communs en suédois",
    "suédois"
  ],
  "lang": "Suédois",
  "lang_code": "sv",
  "pos": "noun",
  "pos_title": "Forme de nom commun",
  "senses": [
    {
      "form_of": [
        {
          "word": "decennium"
        }
      ],
      "glosses": [
        "Pluriel indéfini de decennium."
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "decennier"
}