"megapolis" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "polis",
        "t1": "great",
        "t2": "city"
      },
      "expansion": "mega- (“great”) + -polis (“city”)",
      "name": "confix"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "μέγας",
        "4": "",
        "5": "large"
      },
      "expansion": "Ancient Greek μέγας (mégas, “large”)",
      "name": "der"
    },
    {
      "args": {
        "1": "grc",
        "2": "πόλις",
        "3": "",
        "4": "city"
      },
      "expansion": "πόλις (pólis, “city”)",
      "name": "m"
    }
  ],
  "etymology_text": "From mega- (“great”) + -polis (“city”), from Ancient Greek μέγας (mégas, “large”) + πόλις (pólis, “city”).",
  "forms": [
    {
      "form": "megapolises",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "megapoleis",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "+",
        "2": "megapoleis"
      },
      "expansion": "megapolis (plural megapolises or megapoleis)",
      "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"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -polis",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "megapolitan"
        }
      ],
      "glosses": [
        "A very large city or urban complex; a metropolis."
      ],
      "id": "en-megapolis-en-noun-2CgAgODP",
      "links": [
        [
          "city",
          "city"
        ],
        [
          "metropolis",
          "metropolis"
        ]
      ],
      "related": [
        {
          "word": "acropolis"
        },
        {
          "word": "ecumenopolis"
        },
        {
          "word": "megalopolis"
        },
        {
          "word": "metropolis"
        },
        {
          "word": "polis"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/mɛˈɡæ.pɒ.lɪs/"
    }
  ],
  "word": "megapolis"
}

{
  "derived": [
    {
      "word": "megapolitan"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mega",
        "3": "polis",
        "t1": "great",
        "t2": "city"
      },
      "expansion": "mega- (“great”) + -polis (“city”)",
      "name": "confix"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "μέγας",
        "4": "",
        "5": "large"
      },
      "expansion": "Ancient Greek μέγας (mégas, “large”)",
      "name": "der"
    },
    {
      "args": {
        "1": "grc",
        "2": "πόλις",
        "3": "",
        "4": "city"
      },
      "expansion": "πόλις (pólis, “city”)",
      "name": "m"
    }
  ],
  "etymology_text": "From mega- (“great”) + -polis (“city”), from Ancient Greek μέγας (mégas, “large”) + πόλις (pólis, “city”).",
  "forms": [
    {
      "form": "megapolises",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "megapoleis",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "+",
        "2": "megapoleis"
      },
      "expansion": "megapolis (plural megapolises or megapoleis)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "acropolis"
    },
    {
      "word": "ecumenopolis"
    },
    {
      "word": "megalopolis"
    },
    {
      "word": "metropolis"
    },
    {
      "word": "polis"
    }
  ],
  "senses": [
    {
      "categories": [
        "English 4-syllable words",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms derived from Ancient Greek",
        "English terms prefixed with mega-",
        "English terms suffixed with -polis",
        "English terms with IPA pronunciation"
      ],
      "glosses": [
        "A very large city or urban complex; a metropolis."
      ],
      "links": [
        [
          "city",
          "city"
        ],
        [
          "metropolis",
          "metropolis"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/mɛˈɡæ.pɒ.lɪs/"
    }
  ],
  "word": "megapolis"
}