"KD" meaning in Esperanto

{
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "noun"
      },
      "expansion": "KD",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "kompakta disko"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 6 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Music",
          "orig": "eo:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of kompakta disko."
      ],
      "id": "en-KD-eo-noun-5KZRx0SU",
      "links": [
        [
          "kompakta disko",
          "kompakta disko#Esperanto"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "KD"
}

{
  "head_templates": [
    {
      "args": {
        "1": "eo",
        "2": "noun"
      },
      "expansion": "KD",
      "name": "head"
    }
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "kompakta disko"
        }
      ],
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto initialisms",
        "Esperanto lemmas",
        "Esperanto nouns",
        "Pages with 6 entries",
        "Pages with entries",
        "eo:Music"
      ],
      "glosses": [
        "Initialism of kompakta disko."
      ],
      "links": [
        [
          "kompakta disko",
          "kompakta disko#Esperanto"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "KD"
}