"Ground Zero" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ground zero"
      },
      "expansion": "ground zero",
      "name": "m"
    }
  ],
  "etymology_text": "From the general term ground zero.",
  "head_templates": [
    {
      "args": {
        "nolinkhead": "1"
      },
      "expansion": "Ground Zero",
      "name": "en-proper noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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      ],
      "examples": [
        {
          "ref": "2010, George W. Bush, Decision Points, →OCLC, →OL, page 148",
          "text": "As we approached Ground Zero, I felt like I was entering a nightmare. There was little light. Smoke hung in the air and mixed with suspended particles of debris, creating an eerie gray curtain. We sloshed through puddles left behind by the morning rain and the water used to fight the fires.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The site of the former World Trade Center towers in New York City destroyed on 11 September 2001."
      ],
      "id": "en-Ground_Zero-en-name-KZ65xihW",
      "links": [
        [
          "World Trade Center",
          "World Trade Center"
        ],
        [
          "New York City",
          "New York City"
        ]
      ],
      "translations": [
        {
          "code": "eo",
          "lang": "Esperanto",
          "sense": "site of former World Trade Center",
          "word": "Nultero"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "site of former World Trade Center",
          "tags": [
            "masculine",
            "neuter"
          ],
          "word": "Ground Zero"
        }
      ]
    }
  ],
  "word": "Ground Zero"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ground zero"
      },
      "expansion": "ground zero",
      "name": "m"
    }
  ],
  "etymology_text": "From the general term ground zero.",
  "head_templates": [
    {
      "args": {
        "nolinkhead": "1"
      },
      "expansion": "Ground Zero",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
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        "English uncountable nouns"
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      "examples": [
        {
          "ref": "2010, George W. Bush, Decision Points, →OCLC, →OL, page 148",
          "text": "As we approached Ground Zero, I felt like I was entering a nightmare. There was little light. Smoke hung in the air and mixed with suspended particles of debris, creating an eerie gray curtain. We sloshed through puddles left behind by the morning rain and the water used to fight the fires.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The site of the former World Trade Center towers in New York City destroyed on 11 September 2001."
      ],
      "links": [
        [
          "World Trade Center",
          "World Trade Center"
        ],
        [
          "New York City",
          "New York City"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "site of former World Trade Center",
      "word": "Nultero"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "site of former World Trade Center",
      "tags": [
        "masculine",
        "neuter"
      ],
      "word": "Ground Zero"
    }
  ],
  "word": "Ground Zero"
}