"Piccadilly Circus" meaning in English

{
  "etymology_text": "Piccadilly + circus.",
  "head_templates": [
    {
      "args": {
        "head": "Piccadilly Circus"
      },
      "expansion": "Piccadilly Circus",
      "name": "en-proper noun"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "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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          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
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          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "en",
          "name": "London",
          "orig": "en:London",
          "parents": [
            "Greater London, England",
            "England",
            "United Kingdom",
            "British Isles",
            "Europe",
            "Islands",
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            "Places",
            "Nature",
            "Names",
            "All topics",
            "Proper nouns",
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            "Fundamental",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "I've never seen the place so crowded – it was like Piccadilly Circus!"
        }
      ],
      "glosses": [
        "A traffic intersection in the West End of London, having connections with Piccadilly, Regent Street, Shaftesbury Avenue, Haymarket, Coventry Street and Glasshouse Street; proverbially visualised as being very busy with people."
      ],
      "id": "en-Piccadilly_Circus-en-name-pWG9HaVE",
      "links": [
        [
          "traffic",
          "traffic"
        ],
        [
          "intersection",
          "intersection"
        ],
        [
          "West End",
          "West End"
        ],
        [
          "Piccadilly",
          "Piccadilly"
        ],
        [
          "Regent Street",
          "Regent Street"
        ],
        [
          "Shaftesbury Avenue",
          "Shaftesbury Avenue"
        ],
        [
          "Haymarket",
          "Haymarket"
        ],
        [
          "Coventry Street",
          "Coventry Street"
        ],
        [
          "Glasshouse Street",
          "Glasshouse Street"
        ]
      ],
      "wikipedia": [
        "Piccadilly Circus"
      ]
    }
  ],
  "word": "Piccadilly Circus"
}

{
  "etymology_text": "Piccadilly + circus.",
  "head_templates": [
    {
      "args": {
        "head": "Piccadilly Circus"
      },
      "expansion": "Piccadilly Circus",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:London"
      ],
      "examples": [
        {
          "text": "I've never seen the place so crowded – it was like Piccadilly Circus!"
        }
      ],
      "glosses": [
        "A traffic intersection in the West End of London, having connections with Piccadilly, Regent Street, Shaftesbury Avenue, Haymarket, Coventry Street and Glasshouse Street; proverbially visualised as being very busy with people."
      ],
      "links": [
        [
          "traffic",
          "traffic"
        ],
        [
          "intersection",
          "intersection"
        ],
        [
          "West End",
          "West End"
        ],
        [
          "Piccadilly",
          "Piccadilly"
        ],
        [
          "Regent Street",
          "Regent Street"
        ],
        [
          "Shaftesbury Avenue",
          "Shaftesbury Avenue"
        ],
        [
          "Haymarket",
          "Haymarket"
        ],
        [
          "Coventry Street",
          "Coventry Street"
        ],
        [
          "Glasshouse Street",
          "Glasshouse Street"
        ]
      ],
      "wikipedia": [
        "Piccadilly Circus"
      ]
    }
  ],
  "word": "Piccadilly Circus"
}