"lietuvišku" meaning in Lithuanian

{
  "forms": [
    {
      "form": "lietùvišku",
      "tags": [
        "canonical",
        "masculine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "lt",
        "2": "adjective form",
        "g": "m",
        "head": "lietùvišku"
      },
      "expansion": "lietùvišku m",
      "name": "head"
    }
  ],
  "lang": "Lithuanian",
  "lang_code": "lt",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lithuanian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "lietuviškas"
        }
      ],
      "glosses": [
        "instrumental masculine singular of lietuviškas"
      ],
      "id": "en-lietuvišku-lt-adj-aR74HQlX",
      "links": [
        [
          "lietuviškas",
          "lietuviškas#Lithuanian"
        ]
      ],
      "tags": [
        "form-of",
        "instrumental",
        "masculine",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[lʲjɛˈtʊʋʲɪʃkʊ]"
    }
  ],
  "word": "lietuvišku"
}

{
  "forms": [
    {
      "form": "lietùvišku",
      "tags": [
        "canonical",
        "masculine"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "lt",
        "2": "adjective form",
        "g": "m",
        "head": "lietùvišku"
      },
      "expansion": "lietùvišku m",
      "name": "head"
    }
  ],
  "lang": "Lithuanian",
  "lang_code": "lt",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Lithuanian adjective forms",
        "Lithuanian entries with incorrect language header",
        "Lithuanian non-lemma forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "lietuviškas"
        }
      ],
      "glosses": [
        "instrumental masculine singular of lietuviškas"
      ],
      "links": [
        [
          "lietuviškas",
          "lietuviškas#Lithuanian"
        ]
      ],
      "tags": [
        "form-of",
        "instrumental",
        "masculine",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[lʲjɛˈtʊʋʲɪʃkʊ]"
    }
  ],
  "word": "lietuvišku"
}