"통字" meaning in Korean

{
  "forms": [
    {
      "form": "tongja",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "통자",
      "tags": [
        "hangeul"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hangeul": "통자"
      },
      "expansion": "통字 • (tongja) (hangeul 통자)",
      "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 non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "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 written in Hanja-Hangul mixed script",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Hanja-Hangul mixed script form of 통자, “all characters on a single printing block”."
      ],
      "id": "en-통字-ko-noun-fJSHxX-0",
      "links": [
        [
          "통자",
          "통자#Korean"
        ]
      ]
    }
  ],
  "word": "통字"
}

{
  "forms": [
    {
      "form": "tongja",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "통자",
      "tags": [
        "hangeul"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hangeul": "통자"
      },
      "expansion": "통字 • (tongja) (hangeul 통자)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Korean entries with incorrect language header",
        "Korean lemmas",
        "Korean nouns",
        "Korean nouns in Han script",
        "Korean terms with non-redundant non-automated sortkeys",
        "Korean terms with redundant script codes",
        "Korean terms written in Hanja-Hangul mixed script",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Hanja-Hangul mixed script form of 통자, “all characters on a single printing block”."
      ],
      "links": [
        [
          "통자",
          "통자#Korean"
        ]
      ]
    }
  ],
  "word": "통字"
}