"big C" meaning in English

{
  "etymology_text": "From the first letter of cancer.",
  "forms": [
    {
      "form": "the big C",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "def": "1",
        "nolinkhead": "1"
      },
      "expansion": "the big C (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English euphemisms",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1965, Time",
          "text": "You can always count on John Wayne, 57; he never steps out of character. \"I kicked the Big C,\" growled the movie toughie, admitting that it was lung cancer that put him in Los Angeles' Good Samaritan Hospital for surgery last September.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "cancer."
      ],
      "id": "en-big_C-en-noun-QD6el8Om",
      "links": [
        [
          "cancer",
          "cancer"
        ]
      ],
      "raw_glosses": [
        "(slang, euphemistic) cancer."
      ],
      "tags": [
        "euphemistic",
        "slang",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-big C.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/c9/En-au-big_C.ogg/En-au-big_C.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c9/En-au-big_C.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "big C"
}

{
  "etymology_text": "From the first letter of cancer.",
  "forms": [
    {
      "form": "the big C",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "def": "1",
        "nolinkhead": "1"
      },
      "expansion": "the big C (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English euphemisms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English slang",
        "English terms with audio links",
        "English terms with quotations",
        "English uncountable nouns",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1965, Time",
          "text": "You can always count on John Wayne, 57; he never steps out of character. \"I kicked the Big C,\" growled the movie toughie, admitting that it was lung cancer that put him in Los Angeles' Good Samaritan Hospital for surgery last September.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "cancer."
      ],
      "links": [
        [
          "cancer",
          "cancer"
        ]
      ],
      "raw_glosses": [
        "(slang, euphemistic) cancer."
      ],
      "tags": [
        "euphemistic",
        "slang",
        "uncountable"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-big C.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/c9/En-au-big_C.ogg/En-au-big_C.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c9/En-au-big_C.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "big C"
}