"ČTK" meaning in Czech

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "ČTK f",
      "name": "cs-proper noun"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Česká tisková kancelář"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Czech entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Czech links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Czech links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of Česká tisková kancelář."
      ],
      "id": "en-ČTK-cs-name-8SCzhwU1",
      "links": [
        [
          "Česká tisková kancelář",
          "w:Česká tisková kancelář"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "feminine",
        "initialism"
      ]
    }
  ],
  "word": "ČTK"
}

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "ČTK f",
      "name": "cs-proper noun"
    }
  ],
  "lang": "Czech",
  "lang_code": "cs",
  "pos": "name",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Česká tisková kancelář"
        }
      ],
      "categories": [
        "Czech entries with incorrect language header",
        "Czech feminine nouns",
        "Czech initialisms",
        "Czech lemmas",
        "Czech links with redundant alt parameters",
        "Czech links with redundant wikilinks",
        "Czech proper nouns",
        "Czech words without vowels",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Initialism of Česká tisková kancelář."
      ],
      "links": [
        [
          "Česká tisková kancelář",
          "w:Česká tisková kancelář"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "feminine",
        "initialism"
      ]
    }
  ],
  "word": "ČTK"
}