"twenty hundred" meaning in English

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      "expansion": "twenty hundred (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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            "Entries with incorrect language header",
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      "glosses": [
        "The start of the twenty-first hour of the day on the 24-hour clock, i.e. 20:00."
      ],
      "id": "en-twenty_hundred-en-noun-PZwU0jzl",
      "links": [
        [
          "hour",
          "hour"
        ],
        [
          "clock",
          "clock"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "twenty hundred"
}

{
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      "expansion": "twenty hundred (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English lemmas",
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        "English nouns",
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      "glosses": [
        "The start of the twenty-first hour of the day on the 24-hour clock, i.e. 20:00."
      ],
      "links": [
        [
          "hour",
          "hour"
        ],
        [
          "clock",
          "clock"
        ]
      ],
      "tags": [
        "uncountable"
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    }
  ],
  "word": "twenty hundred"
}