"4." meaning in Turkish

{
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "adjective"
      },
      "expansion": "4.",
      "name": "head"
    }
  ],
  "hyphenation": [
    "dör‧dün‧cü"
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 5 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Turkish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Turkish ordinal numbers",
          "parents": [
            "Ordinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "4th"
      ],
      "id": "en-4.-tr-adj-E270QxxC",
      "links": [
        [
          "4th",
          "4th"
        ]
      ],
      "synonyms": [
        {
          "word": "4'üncü"
        },
        {
          "word": "dördüncü"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[dœɾdyndʒy]"
    }
  ],
  "word": "4."
}

{
  "head_templates": [
    {
      "args": {
        "1": "tr",
        "2": "adjective"
      },
      "expansion": "4.",
      "name": "head"
    }
  ],
  "hyphenation": [
    "dör‧dün‧cü"
  ],
  "lang": "Turkish",
  "lang_code": "tr",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Pages with 5 entries",
        "Pages with entries",
        "Turkish adjectives",
        "Turkish entries with incorrect language header",
        "Turkish lemmas",
        "Turkish ordinal numbers",
        "Turkish terms spelled with .",
        "Turkish terms spelled with numbers"
      ],
      "glosses": [
        "4th"
      ],
      "links": [
        [
          "4th",
          "4th"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[dœɾdyndʒy]"
    }
  ],
  "synonyms": [
    {
      "word": "4'üncü"
    },
    {
      "word": "dördüncü"
    }
  ],
  "word": "4."
}