"prison ring" meaning in English

{
  "forms": [
    {
      "form": "prison rings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "prison ring (plural prison rings)",
      "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"
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          "source": "w"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
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          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "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"
        }
      ],
      "glosses": [
        "A ring worn on the finger and fashioned by hand in a prison, commonly from a celluloid item such as a toothbrush or a pen."
      ],
      "id": "en-prison_ring-en-noun-EuEF8Udq",
      "links": [
        [
          "ring",
          "ring"
        ],
        [
          "prison",
          "prison"
        ],
        [
          "celluloid",
          "celluloid"
        ]
      ],
      "wikipedia": [
        "prison ring"
      ]
    }
  ],
  "word": "prison ring"
}

{
  "forms": [
    {
      "form": "prison rings",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "prison ring (plural prison rings)",
      "name": "en-noun"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "en:Prison"
      ],
      "glosses": [
        "A ring worn on the finger and fashioned by hand in a prison, commonly from a celluloid item such as a toothbrush or a pen."
      ],
      "links": [
        [
          "ring",
          "ring"
        ],
        [
          "prison",
          "prison"
        ],
        [
          "celluloid",
          "celluloid"
        ]
      ],
      "wikipedia": [
        "prison ring"
      ]
    }
  ],
  "word": "prison ring"
}