"russefeiring" meaning in Norwegian Bokmål

{
  "etymology_templates": [
    {
      "args": {
        "1": "nb",
        "2": "russ",
        "3": "-e-",
        "4": "feiring"
      },
      "expansion": "russ + -e- + feiring",
      "name": "af"
    }
  ],
  "etymology_text": "From russ + -e- + feiring.",
  "forms": [
    {
      "form": "russefeiringa",
      "tags": [
        "definite",
        "singular"
      ]
    },
    {
      "form": "russefeiringen",
      "tags": [
        "definite",
        "singular"
      ]
    },
    {
      "form": "russefeiringer",
      "tags": [
        "indefinite",
        "plural"
      ]
    },
    {
      "form": "russefeiringene",
      "tags": [
        "definite",
        "plural"
      ]
    }
  ],
  "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"
        },
        {
          "kind": "other",
          "name": "Norwegian Bokmål terms interfixed with -e-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "celebrations by high school students in the last month before they leave school"
      ],
      "id": "en-russefeiring-nb-noun-ROdiSacv",
      "tags": [
        "feminine",
        "masculine"
      ]
    }
  ],
  "word": "russefeiring"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "nb",
        "2": "russ",
        "3": "-e-",
        "4": "feiring"
      },
      "expansion": "russ + -e- + feiring",
      "name": "af"
    }
  ],
  "etymology_text": "From russ + -e- + feiring.",
  "forms": [
    {
      "form": "russefeiringa",
      "tags": [
        "definite",
        "singular"
      ]
    },
    {
      "form": "russefeiringen",
      "tags": [
        "definite",
        "singular"
      ]
    },
    {
      "form": "russefeiringer",
      "tags": [
        "indefinite",
        "plural"
      ]
    },
    {
      "form": "russefeiringene",
      "tags": [
        "definite",
        "plural"
      ]
    }
  ],
  "lang": "Norwegian Bokmål",
  "lang_code": "nb",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Norwegian Bokmål compound terms",
        "Norwegian Bokmål entries with incorrect language header",
        "Norwegian Bokmål feminine nouns",
        "Norwegian Bokmål lemmas",
        "Norwegian Bokmål masculine nouns",
        "Norwegian Bokmål nouns",
        "Norwegian Bokmål nouns with multiple genders",
        "Norwegian Bokmål terms interfixed with -e-"
      ],
      "glosses": [
        "celebrations by high school students in the last month before they leave school"
      ],
      "tags": [
        "feminine",
        "masculine"
      ]
    }
  ],
  "word": "russefeiring"
}