"3ʳᵈ" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "3ʳᵈ (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "3rd"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of 3rd"
      ],
      "id": "en-3ʳᵈ-en-adj-jzZ2d0sB",
      "links": [
        [
          "3rd",
          "3rd#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable"
      ]
    }
  ],
  "word": "3ʳᵈ"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "3ʳᵈ (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "3rd"
        }
      ],
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms spelled with numbers",
        "English terms spelled with ʳ",
        "English terms spelled with ᵈ",
        "English uncomparable adjectives",
        "English words without vowels",
        "Pages with 1 entry"
      ],
      "glosses": [
        "Alternative form of 3rd"
      ],
      "links": [
        [
          "3rd",
          "3rd#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable"
      ]
    }
  ],
  "word": "3ʳᵈ"
}