"ㅅㄱ" meaning in Korean

{
  "head_templates": [
    {
      "args": {},
      "expansion": "ㅅㄱ • (sg)",
      "name": "ko-interj"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "sugo",
          "word": "수고(受苦)"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of 수고(受苦) (sugo)."
      ],
      "id": "en-ㅅㄱ-ko-intj-quKQsitq",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "수고(受苦)",
          "수고#Korean"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Abbreviation of 수고(受苦) (sugo)."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "singular"
      ]
    }
  ],
  "word": "ㅅㄱ"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "ㅅㄱ • (sg)",
      "name": "ko-interj"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "sugo",
          "word": "수고(受苦)"
        }
      ],
      "categories": [
        "Korean abbreviations",
        "Korean entries with incorrect language header",
        "Korean interjections",
        "Korean internet slang",
        "Korean lemmas",
        "Korean terms with redundant script codes",
        "Korean terms with redundant transliterations",
        "Korean terms without ko-IPA template"
      ],
      "glosses": [
        "Abbreviation of 수고(受苦) (sugo)."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "수고(受苦)",
          "수고#Korean"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Abbreviation of 수고(受苦) (sugo)."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "singular"
      ]
    }
  ],
  "word": "ㅅㄱ"
}

{
  "called_from": "form_descriptions/2278",
  "msg": "suspicious alt_of/form_of with '(': 수고(受苦)",
  "path": [
    "ㅅㄱ"
  ],
  "section": "Korean",
  "subsection": "interjection",
  "title": "ㅅㄱ",
  "trace": ""
}