"detention cell" meaning in English

{
  "forms": [
    {
      "form": "detention cells",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "detention cell (plural detention cells)",
      "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": "topical",
          "langcode": "en",
          "name": "Prison",
          "orig": "en:Prison",
          "parents": [
            "Buildings",
            "Law enforcement",
            "Buildings and structures",
            "Crime prevention",
            "Emergency services",
            "Law",
            "Architecture",
            "Crime",
            "Public safety",
            "Justice",
            "Applied sciences",
            "Art",
            "Criminal law",
            "Society",
            "Public administration",
            "Security",
            "Sciences",
            "Culture",
            "All topics",
            "Government",
            "Fundamental",
            "Politics"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rooms",
          "orig": "en:Rooms",
          "parents": [
            "Buildings and structures",
            "Architecture",
            "Applied sciences",
            "Art",
            "Sciences",
            "Culture",
            "All topics",
            "Society",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "holding cell."
      ],
      "id": "en-detention_cell-en-noun-smnYN~bS",
      "links": [
        [
          "holding cell",
          "holding cell"
        ]
      ]
    }
  ],
  "word": "detention cell"
}

{
  "forms": [
    {
      "form": "detention cells",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "detention cell (plural detention cells)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Prison",
        "en:Rooms"
      ],
      "glosses": [
        "holding cell."
      ],
      "links": [
        [
          "holding cell",
          "holding cell"
        ]
      ]
    }
  ],
  "word": "detention cell"
}