"Xth" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "Xth (not comparable)",
      "name": "en-adj"
    }
  ],
  "hyphenation": [
    "Xth"
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "tenth"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "English ordinal numbers",
          "parents": [
            "Ordinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "10th; Abbreviation of tenth."
      ],
      "id": "en-Xth-en-adj-Y4Ny3BlM",
      "links": [
        [
          "10th",
          "10th#English"
        ],
        [
          "tenth",
          "tenth#English"
        ]
      ],
      "raw_glosses": [
        "(rare) 10th; Abbreviation of tenth."
      ],
      "related": [
        {
          "sense": "Previous",
          "word": "IXth"
        },
        {
          "sense": "Next",
          "word": "XIth"
        }
      ],
      "synonyms": [
        {
          "word": "10th"
        },
        {
          "word": "tenth"
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "not-comparable",
        "rare"
      ]
    }
  ],
  "word": "Xth"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "Xth (not comparable)",
      "name": "en-adj"
    }
  ],
  "hyphenation": [
    "Xth"
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "sense": "Previous",
      "word": "IXth"
    },
    {
      "sense": "Next",
      "word": "XIth"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "tenth"
        }
      ],
      "categories": [
        "English abbreviations",
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English ordinal numbers",
        "English terms containing Roman numerals",
        "English terms with rare senses",
        "English uncomparable adjectives",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "10th; Abbreviation of tenth."
      ],
      "links": [
        [
          "10th",
          "10th#English"
        ],
        [
          "tenth",
          "tenth#English"
        ]
      ],
      "raw_glosses": [
        "(rare) 10th; Abbreviation of tenth."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "not-comparable",
        "rare"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "10th"
    },
    {
      "word": "tenth"
    }
  ],
  "word": "Xth"
}