"megamonument" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "monument"
      },
      "expansion": "mega- + monument",
      "name": "prefix"
    }
  ],
  "etymology_text": "mega- + monument",
  "forms": [
    {
      "form": "megamonuments",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megamonument (plural megamonuments)",
      "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 terms prefixed with mega-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015 November 9, Kenneth Chang, “Stonehenge Begins to Yield Its Secrets”, in New York Times",
          "text": "After the end of the grand construction phase of Stonehenge, around 2400 B.C., the monument was altered, but the era of megamonument building was over.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very large monument."
      ],
      "id": "en-megamonument-en-noun-cet4X496",
      "links": [
        [
          "monument",
          "monument"
        ]
      ]
    }
  ],
  "word": "megamonument"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "monument"
      },
      "expansion": "mega- + monument",
      "name": "prefix"
    }
  ],
  "etymology_text": "mega- + monument",
  "forms": [
    {
      "form": "megamonuments",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "megamonument (plural megamonuments)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with mega-",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2015 November 9, Kenneth Chang, “Stonehenge Begins to Yield Its Secrets”, in New York Times",
          "text": "After the end of the grand construction phase of Stonehenge, around 2400 B.C., the monument was altered, but the era of megamonument building was over.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A very large monument."
      ],
      "links": [
        [
          "monument",
          "monument"
        ]
      ]
    }
  ],
  "word": "megamonument"
}