"4." meaning in German

{
  "head_templates": [
    {
      "args": {
        "1": "indecl"
      },
      "expansion": "4. (indeclinable)",
      "name": "de-adj"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "vierte"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "German entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "German links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "German ordinal numbers",
          "parents": [
            "Ordinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of vierte."
      ],
      "id": "en-4.-de-adj-JtWS8PZi",
      "links": [
        [
          "ordinal number",
          "ordinal number"
        ],
        [
          "vierte",
          "vierte#German"
        ]
      ],
      "raw_glosses": [
        "(ordinal number) Abbreviation of vierte."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable",
        "numeral",
        "ordinal"
      ]
    }
  ],
  "word": "4."
}

{
  "head_templates": [
    {
      "args": {
        "1": "indecl"
      },
      "expansion": "4. (indeclinable)",
      "name": "de-adj"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "vierte"
        }
      ],
      "categories": [
        "German abbreviations",
        "German adjectives",
        "German entries with incorrect language header",
        "German lemmas",
        "German links with redundant alt parameters",
        "German ordinal numbers",
        "German terms spelled with .",
        "German terms spelled with numbers",
        "German uncomparable adjectives"
      ],
      "glosses": [
        "Abbreviation of vierte."
      ],
      "links": [
        [
          "ordinal number",
          "ordinal number"
        ],
        [
          "vierte",
          "vierte#German"
        ]
      ],
      "raw_glosses": [
        "(ordinal number) Abbreviation of vierte."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable",
        "numeral",
        "ordinal"
      ]
    }
  ],
  "word": "4."
}