"tiedätkö" meaning in Finnish

{
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "verb form"
      },
      "expansion": "tiedätkö",
      "name": "head"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Finnish 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"
        }
      ],
      "examples": [
        {
          "english": "Do you know where the city hall is?",
          "text": "Tiedätkö, missä on kaupungintalo?",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "extra": "with enclitic-ko",
          "word": "tietää"
        }
      ],
      "glosses": [
        "second-person singular present indicative of tietää (with enclitic-ko)"
      ],
      "id": "en-tiedätkö-fi-verb-G1vMUTE6",
      "links": [
        [
          "tietää",
          "tietää#Finnish"
        ],
        [
          "-ko",
          "-ko#Finnish"
        ]
      ],
      "tags": [
        "form-of",
        "indicative",
        "present",
        "second-person",
        "singular"
      ]
    }
  ],
  "word": "tiedätkö"
}

{
  "head_templates": [
    {
      "args": {
        "1": "fi",
        "2": "verb form"
      },
      "expansion": "tiedätkö",
      "name": "head"
    }
  ],
  "lang": "Finnish",
  "lang_code": "fi",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Finnish entries with incorrect language header",
        "Finnish non-lemma forms",
        "Finnish terms with usage examples",
        "Finnish verb forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "Do you know where the city hall is?",
          "text": "Tiedätkö, missä on kaupungintalo?",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "extra": "with enclitic-ko",
          "word": "tietää"
        }
      ],
      "glosses": [
        "second-person singular present indicative of tietää (with enclitic-ko)"
      ],
      "links": [
        [
          "tietää",
          "tietää#Finnish"
        ],
        [
          "-ko",
          "-ko#Finnish"
        ]
      ],
      "tags": [
        "form-of",
        "indicative",
        "present",
        "second-person",
        "singular"
      ]
    }
  ],
  "word": "tiedätkö"
}