"2A0" meaning in Norwegian Bokmål

{
  "etymology_text": "See the Wikipedia article ISO 216, the international standard on paper sizes.",
  "head_templates": [
    {
      "args": {
        "1": "nb",
        "2": "noun"
      },
      "expansion": "2A0",
      "name": "head"
    }
  ],
  "hyphenation": [
    "2‧A‧0"
  ],
  "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "nb",
          "name": "Paper sizes",
          "orig": "nb:Paper sizes",
          "parents": [
            "Paper",
            "Materials",
            "Manufacturing",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "dimensions: 1189 x 1682 mm"
        }
      ],
      "glosses": [
        "A standard paper size, defined by ISO 216."
      ],
      "id": "en-2A0-nb-noun-3nMxgVOa",
      "links": [
        [
          "paper",
          "paper"
        ]
      ],
      "related": [
        {
          "sense": "A paper sizes",
          "word": "A0"
        },
        {
          "sense": "A paper sizes",
          "word": "A1"
        },
        {
          "sense": "A paper sizes",
          "word": "A2"
        },
        {
          "sense": "A paper sizes",
          "word": "A3"
        },
        {
          "sense": "A paper sizes",
          "word": "A4"
        },
        {
          "sense": "A paper sizes",
          "word": "A5"
        },
        {
          "sense": "A paper sizes",
          "word": "A6"
        },
        {
          "sense": "A paper sizes",
          "word": "A7"
        },
        {
          "sense": "A paper sizes",
          "word": "A8"
        },
        {
          "sense": "A paper sizes",
          "word": "A9"
        },
        {
          "sense": "A paper sizes",
          "word": "A10"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈtuː.ɑː.nʉl/"
    },
    {
      "rhymes": "-ʉl"
    },
    {
      "audio": "NB - Pronunciation of Norwegian Bokmål «2A0».ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/fe/NB_-_Pronunciation_of_Norwegian_Bokm%C3%A5l_%C2%AB2A0%C2%BB.ogg/NB_-_Pronunciation_of_Norwegian_Bokm%C3%A5l_%C2%AB2A0%C2%BB.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/f/fe/NB_-_Pronunciation_of_Norwegian_Bokm%C3%A5l_%C2%AB2A0%C2%BB.ogg",
      "text": "Audio"
    }
  ],
  "word": "2A0"
}

{
  "etymology_text": "See the Wikipedia article ISO 216, the international standard on paper sizes.",
  "head_templates": [
    {
      "args": {
        "1": "nb",
        "2": "noun"
      },
      "expansion": "2A0",
      "name": "head"
    }
  ],
  "hyphenation": [
    "2‧A‧0"
  ],
  "lang": "Norwegian Bokmål",
  "lang_code": "nb",
  "pos": "noun",
  "related": [
    {
      "sense": "A paper sizes",
      "word": "A0"
    },
    {
      "sense": "A paper sizes",
      "word": "A1"
    },
    {
      "sense": "A paper sizes",
      "word": "A2"
    },
    {
      "sense": "A paper sizes",
      "word": "A3"
    },
    {
      "sense": "A paper sizes",
      "word": "A4"
    },
    {
      "sense": "A paper sizes",
      "word": "A5"
    },
    {
      "sense": "A paper sizes",
      "word": "A6"
    },
    {
      "sense": "A paper sizes",
      "word": "A7"
    },
    {
      "sense": "A paper sizes",
      "word": "A8"
    },
    {
      "sense": "A paper sizes",
      "word": "A9"
    },
    {
      "sense": "A paper sizes",
      "word": "A10"
    }
  ],
  "senses": [
    {
      "categories": [
        "Norwegian Bokmål entries with incorrect language header",
        "Norwegian Bokmål entries with topic categories using raw markup",
        "Norwegian Bokmål lemmas",
        "Norwegian Bokmål nouns",
        "Norwegian Bokmål terms spelled with numbers",
        "Norwegian Bokmål terms with IPA pronunciation",
        "Norwegian Bokmål terms with audio links",
        "Norwegian Bokmål uncountable nouns",
        "Rhymes:Norwegian Bokmål/ʉl",
        "nb:Paper sizes"
      ],
      "examples": [
        {
          "text": "dimensions: 1189 x 1682 mm"
        }
      ],
      "glosses": [
        "A standard paper size, defined by ISO 216."
      ],
      "links": [
        [
          "paper",
          "paper"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈtuː.ɑː.nʉl/"
    },
    {
      "rhymes": "-ʉl"
    },
    {
      "audio": "NB - Pronunciation of Norwegian Bokmål «2A0».ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/f/fe/NB_-_Pronunciation_of_Norwegian_Bokm%C3%A5l_%C2%AB2A0%C2%BB.ogg/NB_-_Pronunciation_of_Norwegian_Bokm%C3%A5l_%C2%AB2A0%C2%BB.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/f/fe/NB_-_Pronunciation_of_Norwegian_Bokm%C3%A5l_%C2%AB2A0%C2%BB.ogg",
      "text": "Audio"
    }
  ],
  "word": "2A0"
}