"dü" meaning in Azerbaijani

{
  "etymology_templates": [
    {
      "args": {
        "1": "az",
        "2": "fa",
        "3": "دو"
      },
      "expansion": "Persian دو",
      "name": "bor"
    }
  ],
  "etymology_text": "From Persian دو.",
  "head_templates": [
    {
      "args": {
        "1": "az",
        "2": "numeral"
      },
      "expansion": "dü",
      "name": "head"
    }
  ],
  "lang": "Azerbaijani",
  "lang_code": "az",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Azerbaijani entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 9 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "az",
          "name": "Backgammon",
          "orig": "az:Backgammon",
          "parents": [
            "Board games",
            "Tabletop games",
            "Games",
            "Recreation",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "two"
      ],
      "id": "en-dü-az-num-P8TM~nRY",
      "links": [
        [
          "backgammon",
          "backgammon"
        ],
        [
          "two",
          "two"
        ]
      ],
      "raw_glosses": [
        "(backgammon) two"
      ],
      "topics": [
        "backgammon",
        "games"
      ]
    }
  ],
  "word": "dü"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "az",
        "2": "fa",
        "3": "دو"
      },
      "expansion": "Persian دو",
      "name": "bor"
    }
  ],
  "etymology_text": "From Persian دو.",
  "head_templates": [
    {
      "args": {
        "1": "az",
        "2": "numeral"
      },
      "expansion": "dü",
      "name": "head"
    }
  ],
  "lang": "Azerbaijani",
  "lang_code": "az",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Azerbaijani entries with incorrect language header",
        "Azerbaijani lemmas",
        "Azerbaijani numerals",
        "Azerbaijani terms borrowed from Persian",
        "Azerbaijani terms derived from Persian",
        "Pages with 9 entries",
        "Pages with entries",
        "az:Backgammon"
      ],
      "glosses": [
        "two"
      ],
      "links": [
        [
          "backgammon",
          "backgammon"
        ],
        [
          "two",
          "two"
        ]
      ],
      "raw_glosses": [
        "(backgammon) two"
      ],
      "topics": [
        "backgammon",
        "games"
      ]
    }
  ],
  "word": "dü"
}