"15" meaning in Translingual

{
  "forms": [
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      "form": "14",
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    {
      "form": "16",
      "tags": [
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        "3": "previous",
        "4": "14",
        "5": "next",
        "6": "16"
      },
      "expansion": "15 (previous 14, next 16)",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        {
          "_dis": "51 49",
          "kind": "topical",
          "name": "Translingual numeral symbols",
          "parents": [
            "Numeral symbols",
            "Symbols",
            "Letters, symbols, and punctuation",
            "Orthography",
            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "94 6",
          "kind": "topical",
          "langcode": "mul",
          "name": "Fifteen",
          "orig": "mul:Fifteen",
          "parents": [
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The cardinal number fifteen."
      ],
      "id": "en-15-mul-symbol-r~s~ivU~",
      "links": [
        [
          "fifteen",
          "fifteen"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Tennis",
          "orig": "mul:Tennis",
          "parents": [
            "Ball games",
            "Racquet sports",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "43 57",
          "kind": "other",
          "name": "Hindu-Arabic script",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "26 74",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
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        },
        {
          "_dis": "24 76",
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          "parents": [
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            "Entry maintenance"
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        },
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          "kind": "topical",
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          "parents": [
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            "Writing",
            "Human behaviour",
            "Language",
            "Human",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "score after a player has scored one point in a game"
      ],
      "id": "en-15-mul-symbol-I9Oid3TL",
      "links": [
        [
          "tennis",
          "tennis"
        ],
        [
          "game",
          "game"
        ]
      ],
      "raw_glosses": [
        "(tennis) score after a player has scored one point in a game"
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports",
        "tennis"
      ]
    }
  ],
  "wikipedia": [
    "15"
  ],
  "word": "15"
}

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    "Pages with 1 entry",
    "Pages with entries",
    "Translingual entries with incorrect language header",
    "Translingual lemmas",
    "Translingual numeral symbols",
    "Translingual terms spelled with numbers",
    "mul:Fifteen"
  ],
  "forms": [
    {
      "form": "14",
      "tags": [
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      ]
    },
    {
      "form": "16",
      "tags": [
        "next"
      ]
    }
  ],
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    {
      "args": {
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        "2": "numeral symbol",
        "3": "previous",
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        "6": "16"
      },
      "expansion": "15 (previous 14, next 16)",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "The cardinal number fifteen."
      ],
      "links": [
        [
          "fifteen",
          "fifteen"
        ]
      ]
    },
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        "mul:Tennis"
      ],
      "glosses": [
        "score after a player has scored one point in a game"
      ],
      "links": [
        [
          "tennis",
          "tennis"
        ],
        [
          "game",
          "game"
        ]
      ],
      "raw_glosses": [
        "(tennis) score after a player has scored one point in a game"
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports",
        "tennis"
      ]
    }
  ],
  "wikipedia": [
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  ],
  "word": "15"
}