"tja" meaning in Icelandic

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "da",
        "3": "tja"
      },
      "expansion": "Danish tja",
      "name": "bor"
    }
  ],
  "etymology_text": "Probably taken from Danish tja.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "interjection"
      },
      "expansion": "tja",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with tab characters",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "17 2 2 2 8 2 1 20 14 14 1 17 0 1",
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "18 2 2 2 7 2 1 18 15 15 1 15 0 1",
          "kind": "other",
          "name": "Pages with tab characters",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "english": "Would you like to eat? - Well, I'm not sure ...",
          "text": "Má bjóða þér að borða? - Tja, ég veit ekki ...",
          "type": "example"
        }
      ],
      "glosses": [
        "Expression of contemplation or hesitation"
      ],
      "id": "en-tja-is-intj-m8X3BEaR"
    }
  ],
  "word": "tja"
}

{
  "categories": [
    "Pages with 7 entries",
    "Pages with entries",
    "Pages with tab characters"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "da",
        "3": "tja"
      },
      "expansion": "Danish tja",
      "name": "bor"
    }
  ],
  "etymology_text": "Probably taken from Danish tja.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "interjection"
      },
      "expansion": "tja",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "Icelandic entries with incorrect language header",
        "Icelandic interjections",
        "Icelandic lemmas",
        "Icelandic terms borrowed from Danish",
        "Icelandic terms derived from Danish",
        "Icelandic terms with usage examples",
        "Pages with 7 entries",
        "Pages with entries",
        "Pages with tab characters"
      ],
      "examples": [
        {
          "english": "Would you like to eat? - Well, I'm not sure ...",
          "text": "Má bjóða þér að borða? - Tja, ég veit ekki ...",
          "type": "example"
        }
      ],
      "glosses": [
        "Expression of contemplation or hesitation"
      ]
    }
  ],
  "word": "tja"
}