"ruská" meaning in Slovak

{
  "head_templates": [
    {
      "args": {
        "1": "sk",
        "2": "adjective form"
      },
      "expansion": "ruská",
      "name": "head"
    }
  ],
  "lang": "Slovak",
  "lang_code": "sk",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Slovak entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "ruský"
        }
      ],
      "glosses": [
        "feminine nominative singular of ruský"
      ],
      "id": "en-ruská-sk-adj-r0MQQgoV",
      "links": [
        [
          "ruský",
          "ruský#Slovak"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "nominative",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈruskaː]"
    }
  ],
  "word": "ruská"
}

{
  "head_templates": [
    {
      "args": {
        "1": "sk",
        "2": "adjective form"
      },
      "expansion": "ruská",
      "name": "head"
    }
  ],
  "lang": "Slovak",
  "lang_code": "sk",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Slovak adjective forms",
        "Slovak entries with incorrect language header",
        "Slovak non-lemma forms",
        "Slovak terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "word": "ruský"
        }
      ],
      "glosses": [
        "feminine nominative singular of ruský"
      ],
      "links": [
        [
          "ruský",
          "ruský#Slovak"
        ]
      ],
      "tags": [
        "feminine",
        "form-of",
        "nominative",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈruskaː]"
    }
  ],
  "word": "ruská"
}