"8º" meaning in Portuguese

{
  "forms": [
    {
      "form": "8ª",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "8ᵒˢ",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "8ᵃˢ",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "fpl": "8ᵃˢ",
        "hascomp": "no",
        "mpl": "8ᵒˢ"
      },
      "expansion": "8º (feminine 8ª, masculine plural 8ᵒˢ, feminine plural 8ᵃˢ, not comparable)",
      "name": "pt-adj"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "8.º"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Portuguese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of 8.º"
      ],
      "id": "en-8º-pt-adj-jRPLNJg~",
      "links": [
        [
          "8.º",
          "8.º#Portuguese"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable",
        "proscribed"
      ]
    }
  ],
  "word": "8º"
}

{
  "forms": [
    {
      "form": "8ª",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "8ᵒˢ",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "8ᵃˢ",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "fpl": "8ᵃˢ",
        "hascomp": "no",
        "mpl": "8ᵒˢ"
      },
      "expansion": "8º (feminine 8ª, masculine plural 8ᵒˢ, feminine plural 8ᵃˢ, not comparable)",
      "name": "pt-adj"
    }
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "8.º"
        }
      ],
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Portuguese adjectives",
        "Portuguese entries with incorrect language header",
        "Portuguese lemmas",
        "Portuguese links with redundant wikilinks",
        "Portuguese proscribed terms",
        "Portuguese terms spelled with numbers",
        "Portuguese terms spelled with º",
        "Portuguese uncomparable adjectives"
      ],
      "glosses": [
        "Alternative form of 8.º"
      ],
      "links": [
        [
          "8.º",
          "8.º#Portuguese"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable",
        "proscribed"
      ]
    }
  ],
  "word": "8º"
}