"PK" meaning in Korean

{
  "etymology_text": "From McCune-Reischauer Romanization initials of Pusan and Kyŏngnam.",
  "forms": [
    {
      "form": "피케이",
      "tags": [
        "hangeul"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "hangeul": "피케이"
      },
      "expansion": "PK • (Pikei) (hangeul 피케이)",
      "name": "ko-pos"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms in nonstandard scripts",
          "parents": [
            "Terms in nonstandard scripts",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with non-redundant manual script codes",
          "parents": [
            "Terms with non-redundant manual script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with non-redundant manual transliterations",
          "parents": [
            "Terms with non-redundant manual transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms written in foreign scripts",
          "parents": [
            "Terms written in foreign scripts",
            "Terms by orthographic property",
            "Terms by lexical property"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Busan–Gyeongnam; Busan and South Gyeongsang"
      ],
      "id": "en-PK-ko-name-S2ORpuD-",
      "links": [
        [
          "Busan",
          "Busan"
        ],
        [
          "South",
          "south"
        ],
        [
          "Gyeongsang",
          "Gyeongsang"
        ]
      ],
      "synonyms": [
        {
          "alt": "釜慶",
          "roman": "bugyeong",
          "word": "부경"
        }
      ],
      "wikipedia": [
        "PK"
      ]
    }
  ],
  "word": "PK"
}

{
  "etymology_text": "From McCune-Reischauer Romanization initials of Pusan and Kyŏngnam.",
  "forms": [
    {
      "form": "피케이",
      "tags": [
        "hangeul"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "hangeul": "피케이"
      },
      "expansion": "PK • (Pikei) (hangeul 피케이)",
      "name": "ko-pos"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Korean entries with incorrect language header",
        "Korean entries with language name categories using raw markup",
        "Korean lemmas",
        "Korean proper nouns",
        "Korean terms in nonstandard scripts",
        "Korean terms with non-redundant manual script codes",
        "Korean terms with non-redundant manual transliterations",
        "Korean terms with non-redundant non-automated sortkeys",
        "Korean terms written in foreign scripts"
      ],
      "glosses": [
        "Busan–Gyeongnam; Busan and South Gyeongsang"
      ],
      "links": [
        [
          "Busan",
          "Busan"
        ],
        [
          "South",
          "south"
        ],
        [
          "Gyeongsang",
          "Gyeongsang"
        ]
      ],
      "wikipedia": [
        "PK"
      ]
    }
  ],
  "synonyms": [
    {
      "alt": "釜慶",
      "roman": "bugyeong",
      "word": "부경"
    }
  ],
  "word": "PK"
}

{
  "called_from": "form_descriptions/1698",
  "msg": "unrecognized head form: Pikei",
  "path": [
    "PK"
  ],
  "section": "Korean",
  "subsection": "proper noun",
  "title": "PK",
  "trace": ""
}