"착각" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "錯覺"
      },
      "expansion": "Sino-Korean word from 錯覺",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 錯覺.",
  "forms": [
    {
      "form": "chakgak",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "錯覺",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "錯覺"
      },
      "expansion": "착각 • (chakgak) (hanja 錯覺)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "illusion, delusion"
      ],
      "id": "en-착각-ko-noun-AKky2oEq",
      "links": [
        [
          "illusion",
          "illusion"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "2 98",
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "3 97",
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "2 98",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "9 91",
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "mistake, mix up, flatter oneself, delude oneself into doing"
      ],
      "id": "en-착각-ko-noun-5RdI789b"
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕʰa̠k̚k͈a̠k̚]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "착깍"
    },
    {
      "other": "[착깍]"
    }
  ],
  "word": "착각"
}

{
  "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"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "錯覺"
      },
      "expansion": "Sino-Korean word from 錯覺",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 錯覺.",
  "forms": [
    {
      "form": "chakgak",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "錯覺",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "錯覺"
      },
      "expansion": "착각 • (chakgak) (hanja 錯覺)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "illusion, delusion"
      ],
      "links": [
        [
          "illusion",
          "illusion"
        ]
      ]
    },
    {
      "glosses": [
        "mistake, mix up, flatter oneself, delude oneself into doing"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕʰa̠k̚k͈a̠k̚]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "착깍"
    },
    {
      "other": "[착깍]"
    }
  ],
  "word": "착각"
}