"качку" meaning in Russian

{
  "etymology_number": 1,
  "forms": [
    {
      "form": "ка́чку",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "káčku",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "f-in",
        "head": "ка́чку"
      },
      "expansion": "ка́чку • (káčku) f inan",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "káčka",
          "word": "ка́чка"
        }
      ],
      "glosses": [
        "accusative singular of ка́чка (káčka)"
      ],
      "id": "en-качку-ru-noun-SajuuzlD",
      "links": [
        [
          "ка́чка",
          "качка#Russian"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈkat͡ɕkʊ]"
    }
  ],
  "word": "качку"
}

{
  "etymology_number": 2,
  "forms": [
    {
      "form": "качку́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kačkú",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "m-an",
        "head": "качку́"
      },
      "expansion": "качку́ • (kačkú) m anim",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "20 80",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "12 88",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "extra": "kačók",
          "word": "качо́к"
        }
      ],
      "glosses": [
        "dative singular of качо́к (kačók)"
      ],
      "id": "en-качку-ru-noun-F6duuLyw",
      "links": [
        [
          "качо́к",
          "качок#Russian"
        ]
      ],
      "tags": [
        "dative",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[kɐt͡ɕˈku]"
    }
  ],
  "word": "качку"
}

{
  "categories": [
    "Pages with 2 entries",
    "Pages with entries",
    "Russian 2-syllable words",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian noun forms",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_number": 1,
  "forms": [
    {
      "form": "ка́чку",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "káčku",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "f-in",
        "head": "ка́чку"
      },
      "expansion": "ка́чку • (káčku) f inan",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "káčka",
          "word": "ка́чка"
        }
      ],
      "glosses": [
        "accusative singular of ка́чка (káčka)"
      ],
      "links": [
        [
          "ка́чка",
          "качка#Russian"
        ]
      ],
      "tags": [
        "accusative",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈkat͡ɕkʊ]"
    }
  ],
  "word": "качку"
}

{
  "categories": [
    "Pages with 2 entries",
    "Pages with entries",
    "Russian 2-syllable words",
    "Russian entries with incorrect language header",
    "Russian non-lemma forms",
    "Russian noun forms",
    "Russian terms with IPA pronunciation"
  ],
  "etymology_number": 2,
  "forms": [
    {
      "form": "качку́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kačkú",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "noun form",
        "g": "m-an",
        "head": "качку́"
      },
      "expansion": "качку́ • (kačkú) m anim",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "kačók",
          "word": "качо́к"
        }
      ],
      "glosses": [
        "dative singular of качо́к (kačók)"
      ],
      "links": [
        [
          "качо́к",
          "качок#Russian"
        ]
      ],
      "tags": [
        "dative",
        "form-of",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[kɐt͡ɕˈku]"
    }
  ],
  "word": "качку"
}