"Чека" meaning in Russian

{
  "etymology_text": "From the pronunciation of ЧК (ČK), abbreviation of Чрезвыча́йная Коми́ссия (Črezvyčájnaja Komíssija).",
  "forms": [
    {
      "form": "Чека́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Čeká",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Чека́",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "Чека́ • (Čeká) f inan (indeclinable)",
      "name": "ru-proper noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "ru",
          "name": "Soviet Union",
          "orig": "ru:Soviet Union",
          "parents": [
            "Asia",
            "Europe",
            "Earth",
            "Eurasia",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "roman": "čekíst",
          "word": "чеки́ст"
        }
      ],
      "glosses": [
        "Cheka (Soviet security organization)"
      ],
      "id": "en-Чека-ru-name-lqWyIeHv",
      "links": [
        [
          "Cheka",
          "Cheka"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕɪˈka]"
    }
  ],
  "word": "Чека"
}

{
  "derived": [
    {
      "roman": "čekíst",
      "word": "чеки́ст"
    }
  ],
  "etymology_text": "From the pronunciation of ЧК (ČK), abbreviation of Чрезвыча́йная Коми́ссия (Črezvyčájnaja Komíssija).",
  "forms": [
    {
      "form": "Чека́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "Čeká",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Чека́",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "Чека́ • (Čeká) f inan (indeclinable)",
      "name": "ru-proper noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian 2-syllable words",
        "Russian entries with incorrect language header",
        "Russian feminine nouns",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian proper nouns",
        "Russian spelled-out initialisms",
        "Russian terms with IPA pronunciation",
        "ru:Soviet Union"
      ],
      "glosses": [
        "Cheka (Soviet security organization)"
      ],
      "links": [
        [
          "Cheka",
          "Cheka"
        ]
      ],
      "tags": [
        "indeclinable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕɪˈka]"
    }
  ],
  "word": "Чека"
}