"(Iä)" meaning in Translingual

{
  "forms": [
    {
      "form": "Iä",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "10": "",
        "2": "symbol",
        "3": "",
        "4": "",
        "5": "or",
        "6": "",
        "7": "or",
        "8": "",
        "9": "or",
        "cat2": "",
        "f1lang": "en",
        "f1nolink": "",
        "f2lang": "en",
        "f2nolink": "",
        "f3lang": "en",
        "f3nolink": "",
        "f4lang": "en",
        "f4nolink": "",
        "head": "(Iä)",
        "head2": "",
        "head3": "",
        "head4": "",
        "nolinkhead": "",
        "sc": "Latn",
        "sort": ""
      },
      "expansion": "(Iä)",
      "name": "head"
    },
    {
      "args": {
        "head": "(Iä)"
      },
      "expansion": "(Iä)",
      "name": "mul-symbol"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "mul",
          "name": "Actuarial notation",
          "orig": "mul:Actuarial notation",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "n-year increasing annuity-due",
          "text": "(Iä)_(n̅|)",
          "type": "example"
        }
      ],
      "glosses": [
        "increasing annuity-due; annuity-due with arithmetically increasing payments, where the first payment has a value of 1"
      ],
      "id": "en-(Iä)-mul-symbol-3OMygbEb",
      "links": [
        [
          "increasing",
          "increasing"
        ],
        [
          "annuity-due",
          "annuity-due"
        ],
        [
          "arithmetically",
          "arithmetically"
        ],
        [
          "payment",
          "payment"
        ],
        [
          "value",
          "value"
        ]
      ],
      "qualifier": "actuarial notation",
      "raw_glosses": [
        "(actuarial notation) increasing annuity-due; annuity-due with arithmetically increasing payments, where the first payment has a value of 1"
      ]
    }
  ],
  "word": "(Iä)"
}

{
  "forms": [
    {
      "form": "Iä",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "10": "",
        "2": "symbol",
        "3": "",
        "4": "",
        "5": "or",
        "6": "",
        "7": "or",
        "8": "",
        "9": "or",
        "cat2": "",
        "f1lang": "en",
        "f1nolink": "",
        "f2lang": "en",
        "f2nolink": "",
        "f3lang": "en",
        "f3nolink": "",
        "f4lang": "en",
        "f4nolink": "",
        "head": "(Iä)",
        "head2": "",
        "head3": "",
        "head4": "",
        "nolinkhead": "",
        "sc": "Latn",
        "sort": ""
      },
      "expansion": "(Iä)",
      "name": "head"
    },
    {
      "args": {
        "head": "(Iä)"
      },
      "expansion": "(Iä)",
      "name": "mul-symbol"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual symbols",
        "Translingual terms spelled with parentheses",
        "Translingual terms spelled with Ä",
        "Translingual terms spelled with ◌̈",
        "Translingual terms with redundant script codes",
        "Translingual terms with usage examples",
        "mul:Actuarial notation"
      ],
      "examples": [
        {
          "english": "n-year increasing annuity-due",
          "text": "(Iä)_(n̅|)",
          "type": "example"
        }
      ],
      "glosses": [
        "increasing annuity-due; annuity-due with arithmetically increasing payments, where the first payment has a value of 1"
      ],
      "links": [
        [
          "increasing",
          "increasing"
        ],
        [
          "annuity-due",
          "annuity-due"
        ],
        [
          "arithmetically",
          "arithmetically"
        ],
        [
          "payment",
          "payment"
        ],
        [
          "value",
          "value"
        ]
      ],
      "qualifier": "actuarial notation",
      "raw_glosses": [
        "(actuarial notation) increasing annuity-due; annuity-due with arithmetically increasing payments, where the first payment has a value of 1"
      ]
    }
  ],
  "word": "(Iä)"
}