"저급" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "低級"
      },
      "expansion": "Sino-Korean word from 低級",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 低級",
  "forms": [
    {
      "form": "jeogeup",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "低級",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "低級"
      },
      "expansion": "저급 • (jeogeup) (hanja 低級)",
      "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 long vowels in the first syllable",
          "parents": [],
          "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": "Sino-Korean words",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "alt": "低級脂肪酸",
          "english": "lower fatty acid",
          "roman": "jeogeup jibangsan",
          "word": "저급 지방산"
        }
      ],
      "glosses": [
        "low grade"
      ],
      "id": "en-저급-ko-noun-sTZ8cCf7",
      "links": [
        [
          "low",
          "low"
        ],
        [
          "grade",
          "grade"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈt͡ɕɘ(ː)ɡɯp̚]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "other": "[저(ː)급]"
    }
  ],
  "word": "저급"
}

{
  "derived": [
    {
      "alt": "低級脂肪酸",
      "english": "lower fatty acid",
      "roman": "jeogeup jibangsan",
      "word": "저급 지방산"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "低級"
      },
      "expansion": "Sino-Korean word from 低級",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 低級",
  "forms": [
    {
      "form": "jeogeup",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "低級",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "低級"
      },
      "expansion": "저급 • (jeogeup) (hanja 低級)",
      "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 long vowels in the first syllable",
        "Korean terms with redundant script codes",
        "Korean terms with redundant transliterations",
        "Sino-Korean words"
      ],
      "glosses": [
        "low grade"
      ],
      "links": [
        [
          "low",
          "low"
        ],
        [
          "grade",
          "grade"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈt͡ɕɘ(ː)ɡɯp̚]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "other": "[저(ː)급]"
    }
  ],
  "word": "저급"
}