"colossæum" meaning in English

{
  "forms": [
    {
      "form": "colossæums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "colossæum (plural colossæums)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "colosseum"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1765, Tobias George Smollett, The Works of Tobias Smollett, volume XI, Letter the Thirty‐Second, page 338",
          "text": "The colossæum was built by Vespasian, who employed thirty thousand Jewish slaves in the work; but finished and dedicated by his son Titus, who, on the first day of its being opened, produced fifty thousand wild beasts, which were all killed in the arena.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Archaic spelling of colosseum."
      ],
      "id": "en-colossæum-en-noun-U-9rhbD~",
      "links": [
        [
          "colosseum",
          "colosseum#English"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
      ]
    }
  ],
  "word": "colossæum"
}

{
  "forms": [
    {
      "form": "colossæums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "colossæum (plural colossæums)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "colosseum"
        }
      ],
      "categories": [
        "English archaic forms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms spelled with Æ",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1765, Tobias George Smollett, The Works of Tobias Smollett, volume XI, Letter the Thirty‐Second, page 338",
          "text": "The colossæum was built by Vespasian, who employed thirty thousand Jewish slaves in the work; but finished and dedicated by his son Titus, who, on the first day of its being opened, produced fifty thousand wild beasts, which were all killed in the arena.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Archaic spelling of colosseum."
      ],
      "links": [
        [
          "colosseum",
          "colosseum#English"
        ]
      ],
      "tags": [
        "alt-of",
        "archaic"
      ]
    }
  ],
  "word": "colossæum"
}