"3:o" meaning in Swedish

{
  "etymology_templates": [
    {
      "args": {
        "1": "sv"
      },
      "expansion": "Internationalism",
      "name": "intnat"
    }
  ],
  "etymology_text": "Internationalism; see 3o, 3º, 3.º.",
  "head_templates": [
    {
      "args": {
        "1": "sv",
        "2": "adverb",
        "head": "",
        "sort": ""
      },
      "expansion": "3:o",
      "name": "head"
    },
    {
      "args": {
        "1": "-"
      },
      "expansion": "3:o (not comparable)",
      "name": "sv-adv"
    }
  ],
  "lang": "Swedish",
  "lang_code": "sv",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Swedish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Swedish internationalisms",
          "parents": [],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "1:o"
        },
        {
          "word": "2:o"
        },
        {
          "word": "4:o"
        },
        {
          "word": "5:o"
        },
        {
          "word": "6:o"
        },
        {
          "word": "7:o"
        },
        {
          "word": "8:o"
        },
        {
          "word": "9:o"
        },
        {
          "word": "10:o"
        },
        {
          "word": "11:o"
        },
        {
          "word": "12:o"
        },
        {
          "word": "13:o"
        },
        {
          "word": "14:o"
        },
        {
          "word": "15:o"
        },
        {
          "word": "16:o"
        },
        {
          "word": "17:o"
        },
        {
          "word": "18:o"
        },
        {
          "word": "19:o"
        },
        {
          "word": "20:o"
        }
      ],
      "examples": [
        {
          "english": "My dear dearest brother! I humbly ask […]\n2nd If the dolphins in the Indian Ocean, those brother well seen, seem to shift to blue in color when they tumble in the waves?\n3rd If brother in Africa ever heard the ostriches hoot night or day?",
          "ref": "1786 October 24, Samuel Ödmann, edited by Henning Wijkmark, Samuel Ödmanns skrifter och brev, published 1925, page 94",
          "roman": "3:o Om Bror i Africa någonsin hörde Strutsarne tjuta natt eller dag?",
          "text": "Min högtärade Käraste Broder! Frågas ödmjukt […]\n2:o Om Delphini i Indiske hafven, dem Bror vel sedt, synas skifta på blått till färgen, när de tumla i böljan?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "3rd"
      ],
      "id": "en-3:o-sv-adv-wNdRcQz7",
      "links": [
        [
          "3rd",
          "3rd"
        ]
      ],
      "raw_glosses": [
        "(archaic) 3rd"
      ],
      "synonyms": [
        {
          "word": "för det tredje"
        }
      ],
      "tags": [
        "archaic",
        "not-comparable",
        "third-person"
      ]
    }
  ],
  "word": "3:o"
}

{
  "coordinate_terms": [
    {
      "word": "1:o"
    },
    {
      "word": "2:o"
    },
    {
      "word": "4:o"
    },
    {
      "word": "5:o"
    },
    {
      "word": "6:o"
    },
    {
      "word": "7:o"
    },
    {
      "word": "8:o"
    },
    {
      "word": "9:o"
    },
    {
      "word": "10:o"
    },
    {
      "word": "11:o"
    },
    {
      "word": "12:o"
    },
    {
      "word": "13:o"
    },
    {
      "word": "14:o"
    },
    {
      "word": "15:o"
    },
    {
      "word": "16:o"
    },
    {
      "word": "17:o"
    },
    {
      "word": "18:o"
    },
    {
      "word": "19:o"
    },
    {
      "word": "20:o"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sv"
      },
      "expansion": "Internationalism",
      "name": "intnat"
    }
  ],
  "etymology_text": "Internationalism; see 3o, 3º, 3.º.",
  "head_templates": [
    {
      "args": {
        "1": "sv",
        "2": "adverb",
        "head": "",
        "sort": ""
      },
      "expansion": "3:o",
      "name": "head"
    },
    {
      "args": {
        "1": "-"
      },
      "expansion": "3:o (not comparable)",
      "name": "sv-adv"
    }
  ],
  "lang": "Swedish",
  "lang_code": "sv",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Swedish adverbs",
        "Swedish entries with incorrect language header",
        "Swedish internationalisms",
        "Swedish lemmas",
        "Swedish terms spelled with :",
        "Swedish terms spelled with numbers",
        "Swedish terms with archaic senses",
        "Swedish terms with quotations"
      ],
      "examples": [
        {
          "english": "My dear dearest brother! I humbly ask […]\n2nd If the dolphins in the Indian Ocean, those brother well seen, seem to shift to blue in color when they tumble in the waves?\n3rd If brother in Africa ever heard the ostriches hoot night or day?",
          "ref": "1786 October 24, Samuel Ödmann, edited by Henning Wijkmark, Samuel Ödmanns skrifter och brev, published 1925, page 94",
          "roman": "3:o Om Bror i Africa någonsin hörde Strutsarne tjuta natt eller dag?",
          "text": "Min högtärade Käraste Broder! Frågas ödmjukt […]\n2:o Om Delphini i Indiske hafven, dem Bror vel sedt, synas skifta på blått till färgen, när de tumla i böljan?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "3rd"
      ],
      "links": [
        [
          "3rd",
          "3rd"
        ]
      ],
      "raw_glosses": [
        "(archaic) 3rd"
      ],
      "synonyms": [
        {
          "word": "för det tredje"
        }
      ],
      "tags": [
        "archaic",
        "not-comparable",
        "third-person"
      ]
    }
  ],
  "word": "3:o"
}