"street level" meaning in English

{
  "head_templates": [
    {
      "args": {
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      "expansion": "street level (uncountable)",
      "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",
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          "source": "w"
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      "examples": [
        {
          "ref": "1951 September, “Reconstruction of Sloane Square Station, London”, in Railway Magazine, page 634",
          "text": "The station building forms a street-level portal and ticket hall, connected by staircases and escalators to the sub-surface platforms. The whole structure is designed as a plinth for a future block of buildings above.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Ground level."
      ],
      "id": "en-street_level-en-noun-vjrhu5n1",
      "links": [
        [
          "Ground level",
          "ground level"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "street level"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "street level (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
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      "examples": [
        {
          "ref": "1951 September, “Reconstruction of Sloane Square Station, London”, in Railway Magazine, page 634",
          "text": "The station building forms a street-level portal and ticket hall, connected by staircases and escalators to the sub-surface platforms. The whole structure is designed as a plinth for a future block of buildings above.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Ground level."
      ],
      "links": [
        [
          "Ground level",
          "ground level"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "street level"
}