"closed-circuit" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "closed-circuit (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "closed-circuit television"
        }
      ],
      "examples": [
        {
          "ref": "1963 January, “News and comment”, in Modern Railways, page 14:",
          "text": "Holborn Underground Station, on London Transport's Piccadilly and Central Lines, has been equipped with closed-circuit television to help control passenger movement.",
          "type": "quote"
        }
      ],
      "glosses": [
        "That consists of a closed circuit."
      ],
      "id": "en-closed-circuit-en-adj-sUHVJc-V",
      "links": [
        [
          "closed circuit",
          "closed circuit"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "closed-circuit"
}

{
  "derived": [
    {
      "word": "closed-circuit television"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "closed-circuit (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1963 January, “News and comment”, in Modern Railways, page 14:",
          "text": "Holborn Underground Station, on London Transport's Piccadilly and Central Lines, has been equipped with closed-circuit television to help control passenger movement.",
          "type": "quote"
        }
      ],
      "glosses": [
        "That consists of a closed circuit."
      ],
      "links": [
        [
          "closed circuit",
          "closed circuit"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "closed-circuit"
}