"slk" meaning in 記号

{
  "categories": [
    {
      "kind": "other",
      "name": "記号",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "記号",
  "lang_code": "unknown",
  "pos": "symbol",
  "pos_title": "略号",
  "related": [
    {
      "word": "slo"
    }
  ],
  "senses": [
    {
      "glosses": [
        "スロヴァキア語のISO 639-2（T）及びISO 639-3言語コード。"
      ],
      "id": "ja-slk-unknown-symbol-6Etvg1fN"
    }
  ],
  "word": "slk"
}

{
  "categories": [
    "記号"
  ],
  "lang": "記号",
  "lang_code": "unknown",
  "pos": "symbol",
  "pos_title": "略号",
  "related": [
    {
      "word": "slo"
    }
  ],
  "senses": [
    {
      "glosses": [
        "スロヴァキア語のISO 639-2（T）及びISO 639-3言語コード。"
      ]
    }
  ],
  "word": "slk"
}