"핵심" meaning in Korean

{
  "derived": [
    {
      "_dis1": "0 0",
      "alt": "核心的",
      "english": "central; key",
      "roman": "haeksimjeok",
      "word": "핵심적"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "核",
        "2": "core",
        "3": "心",
        "4": "center"
      },
      "expansion": "Sino-Korean word from 核心, from 核 (“core”) + 心 (“center”)",
      "name": "ko-etym-Sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 核心, from 核 (“core”) + 心 (“center”)",
  "forms": [
    {
      "form": "haeksim",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "核心",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "核心"
      },
      "expansion": "핵심 • (haeksim) (hanja 核心)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Something which is central or of key importance."
      ],
      "id": "en-핵심-ko-noun-9JNtyNX1",
      "links": [
        [
          "central",
          "central"
        ],
        [
          "key",
          "key"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "North Korean",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "1 99",
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "1 99",
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "1 99",
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "3 97",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "3 97",
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "place",
          "langcode": "ko",
          "name": "North Korea",
          "orig": "ko:North Korea",
          "parents": [
            "Asia",
            "Korea",
            "Earth",
            "Eurasia",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "The top social class in North Korean society."
      ],
      "id": "en-핵심-ko-noun-fJ~U1mWk",
      "raw_glosses": [
        "(North Korea) The top social class in North Korean society."
      ],
      "tags": [
        "North-Korea"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[hɛkɕ͈im]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "ipa": "[he̞kɕ͈im]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "핵씸"
    },
    {
      "hangeul": "헥씸"
    }
  ],
  "word": "핵심"
}

{
  "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:North Korea"
  ],
  "derived": [
    {
      "alt": "核心的",
      "english": "central; key",
      "roman": "haeksimjeok",
      "word": "핵심적"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "核",
        "2": "core",
        "3": "心",
        "4": "center"
      },
      "expansion": "Sino-Korean word from 核心, from 核 (“core”) + 心 (“center”)",
      "name": "ko-etym-Sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 核心, from 核 (“core”) + 心 (“center”)",
  "forms": [
    {
      "form": "haeksim",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "核心",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "核心"
      },
      "expansion": "핵심 • (haeksim) (hanja 核心)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "Something which is central or of key importance."
      ],
      "links": [
        [
          "central",
          "central"
        ],
        [
          "key",
          "key"
        ]
      ]
    },
    {
      "categories": [
        "North Korean"
      ],
      "glosses": [
        "The top social class in North Korean society."
      ],
      "raw_glosses": [
        "(North Korea) The top social class in North Korean society."
      ],
      "tags": [
        "North-Korea"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[hɛkɕ͈im]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "ipa": "[he̞kɕ͈im]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "핵씸"
    },
    {
      "hangeul": "헥씸"
    }
  ],
  "word": "핵심"
}