"철기 시대" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "ko",
        "2": "鐵器時代"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "鐵器",
        "2": "ironware",
        "3": "時代",
        "4": "age"
      },
      "expansion": "Sino-Korean word from 鐵器時代, from 鐵器 (“ironware”) + 時代 (“age”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 鐵器時代, from 鐵器 (“ironware”) + 時代 (“age”).",
  "forms": [
    {
      "form": "Cheolgi sidae",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "鐵器時代",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "hanja": "鐵器時代"
      },
      "expansion": "철기 시대 • (Cheolgi sidae) (hanja 鐵器時代)",
      "name": "ko-pos"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with non-redundant manual transliterations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [],
          "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": "other",
          "langcode": "ko",
          "name": "Archaeology",
          "orig": "ko:Archaeology",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ko",
          "name": "Historical periods",
          "orig": "ko:Historical periods",
          "parents": [],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "alt": "石器時代",
          "english": "Stone Age",
          "roman": "Seokgi sidae",
          "word": "석기 시대"
        },
        {
          "alt": "靑銅器時代",
          "english": "Bronze Age",
          "roman": "Cheongdonggi sidae",
          "word": "청동기 시대"
        }
      ],
      "glosses": [
        "the Iron Age"
      ],
      "id": "en-철기_시대-ko-name-PrhX5Ai5",
      "links": [
        [
          "archaeology",
          "archaeology"
        ],
        [
          "Iron Age",
          "Iron Age"
        ]
      ],
      "raw_glosses": [
        "(archaeology) the Iron Age"
      ],
      "topics": [
        "archaeology",
        "history",
        "human-sciences",
        "sciences"
      ],
      "wikipedia": [
        "ko:철기 시대"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕʰʌ̹ɭɡi ɕʰidɛ]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "ipa": "[t͡ɕʰʌ̹ɭɡi ɕʰide̞]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "철기시대"
    },
    {
      "hangeul": "철기시데"
    }
  ],
  "word": "철기 시대"
}

{
  "coordinate_terms": [
    {
      "alt": "石器時代",
      "english": "Stone Age",
      "roman": "Seokgi sidae",
      "word": "석기 시대"
    },
    {
      "alt": "靑銅器時代",
      "english": "Bronze Age",
      "roman": "Cheongdonggi sidae",
      "word": "청동기 시대"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "ko",
        "2": "鐵器時代"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "鐵器",
        "2": "ironware",
        "3": "時代",
        "4": "age"
      },
      "expansion": "Sino-Korean word from 鐵器時代, from 鐵器 (“ironware”) + 時代 (“age”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 鐵器時代, from 鐵器 (“ironware”) + 時代 (“age”).",
  "forms": [
    {
      "form": "Cheolgi sidae",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "鐵器時代",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "proper",
        "hanja": "鐵器時代"
      },
      "expansion": "철기 시대 • (Cheolgi sidae) (hanja 鐵器時代)",
      "name": "ko-pos"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Korean entries with incorrect language header",
        "Korean lemmas",
        "Korean multiword terms",
        "Korean proper nouns",
        "Korean terms with IPA pronunciation",
        "Korean terms with non-redundant manual transliterations",
        "Korean terms with redundant script codes",
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Korean words",
        "ko:Archaeology",
        "ko:Historical periods"
      ],
      "glosses": [
        "the Iron Age"
      ],
      "links": [
        [
          "archaeology",
          "archaeology"
        ],
        [
          "Iron Age",
          "Iron Age"
        ]
      ],
      "raw_glosses": [
        "(archaeology) the Iron Age"
      ],
      "topics": [
        "archaeology",
        "history",
        "human-sciences",
        "sciences"
      ],
      "wikipedia": [
        "ko:철기 시대"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕʰʌ̹ɭɡi ɕʰidɛ]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "ipa": "[t͡ɕʰʌ̹ɭɡi ɕʰide̞]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "철기시대"
    },
    {
      "hangeul": "철기시데"
    }
  ],
  "word": "철기 시대"
}