"직구" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "直球"
      },
      "expansion": "Sino-Korean word from 直球",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 直球.",
  "forms": [
    {
      "form": "jikgu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "直球",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "直球"
      },
      "expansion": "직구 • (jikgu) (hanja 直球)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "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 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"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ko",
          "name": "Baseball",
          "orig": "ko:Baseball",
          "parents": [
            "Ball games",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: 변화구(變化球) (byeonhwagu, “breaking ball”)"
        }
      ],
      "glosses": [
        "fastball"
      ],
      "id": "en-직구-ko-noun-T9B8Fz97",
      "links": [
        [
          "baseball",
          "baseball"
        ],
        [
          "fastball",
          "fastball"
        ]
      ],
      "raw_glosses": [
        "(baseball) fastball"
      ],
      "topics": [
        "ball-games",
        "baseball",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕik̚k͈u]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "직꾸"
    },
    {
      "other": "[직꾸]"
    }
  ],
  "word": "직구"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "直球"
      },
      "expansion": "Sino-Korean word from 直球",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 直球.",
  "forms": [
    {
      "form": "jikgu",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "直球",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "直球"
      },
      "expansion": "직구 • (jikgu) (hanja 直球)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Korean entries with incorrect language header",
        "Korean lemmas",
        "Korean nouns",
        "Korean terms with IPA pronunciation",
        "Korean terms with redundant script codes",
        "Korean terms with redundant transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Korean words",
        "ko:Baseball"
      ],
      "examples": [
        {
          "text": "Coordinate term: 변화구(變化球) (byeonhwagu, “breaking ball”)"
        }
      ],
      "glosses": [
        "fastball"
      ],
      "links": [
        [
          "baseball",
          "baseball"
        ],
        [
          "fastball",
          "fastball"
        ]
      ],
      "raw_glosses": [
        "(baseball) fastball"
      ],
      "topics": [
        "ball-games",
        "baseball",
        "games",
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕik̚k͈u]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "직꾸"
    },
    {
      "other": "[직꾸]"
    }
  ],
  "word": "직구"
}