"I." meaning in Translingual

{
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "numeral",
        "3": "upper case Roman numeral"
      },
      "expansion": "I. (upper case Roman numeral)",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "num",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Translingual ordinal numbers",
          "parents": [
            "Ordinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "First, especially in the names of monarchs or popes the first."
      ],
      "id": "en-I.-mul-num-EUwOSfjS",
      "links": [
        [
          "monarch",
          "monarch"
        ],
        [
          "pope",
          "pope"
        ],
        [
          "first",
          "first"
        ]
      ],
      "synonyms": [
        {
          "word": "I"
        },
        {
          "word": "i"
        }
      ],
      "tags": [
        "Roman",
        "numeral",
        "uppercase"
      ]
    }
  ],
  "word": "I."
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English proper nouns",
    "English terms spelled with .",
    "English uncountable nouns"
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "numeral",
        "3": "upper case Roman numeral"
      },
      "expansion": "I. (upper case Roman numeral)",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "num",
  "senses": [
    {
      "categories": [
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual numerals",
        "Translingual ordinal numbers",
        "Translingual terms spelled with ."
      ],
      "glosses": [
        "First, especially in the names of monarchs or popes the first."
      ],
      "links": [
        [
          "monarch",
          "monarch"
        ],
        [
          "pope",
          "pope"
        ],
        [
          "first",
          "first"
        ]
      ],
      "tags": [
        "Roman",
        "numeral",
        "uppercase"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "I"
    },
    {
      "word": "i"
    }
  ],
  "word": "I."
}