"red band" meaning in English

{
  "etymology_number": 1,
  "etymology_text": "From the red bands worn on their arms.",
  "forms": [
    {
      "form": "red bands",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "red band (plural red bands)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1967, Harley Cronin, The Screw Turns, page 51",
          "text": "It was an extension of the American Trusty system, as was the appointment of other selected prisoners to be 'Red Bands'.",
          "type": "quotation"
        },
        {
          "ref": "2012, Charlie Seiga, Killer, page 75",
          "text": "A red band was a trusty prisoner who could go anywhere in the prison. His job was taking mail to the main office and delivering any other messages for the screws or staff. Red bands had a bad name amongst the rest of the prisoners.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A trusty; a trusted prisoner given special privileges."
      ],
      "id": "en-red_band-en-noun-iLhBhYvt",
      "links": [
        [
          "trusty",
          "trusty"
        ],
        [
          "prisoner",
          "prisoner"
        ]
      ],
      "raw_glosses": [
        "(UK) A trusty; a trusted prisoner given special privileges."
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "red band"
}

{
  "etymology_number": 2,
  "etymology_text": "From the red color of the horizontal bar on the cinematic rating screen at the start of the show.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "red band (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Film genres",
          "orig": "en:Film genres",
          "parents": [
            "Film",
            "Genres",
            "Entertainment",
            "Mass media",
            "Culture",
            "Media",
            "Society",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "76 24",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "derived": [
        {
          "word": "red band trailer"
        },
        {
          "word": "red band teaser"
        },
        {
          "word": "red band release"
        }
      ],
      "glosses": [
        "R-rated"
      ],
      "id": "en-red_band-en-adj-E3hxJqmO",
      "links": [
        [
          "film",
          "film#Noun"
        ],
        [
          "R-rated",
          "R-rated"
        ]
      ],
      "raw_glosses": [
        "(US, film) R-rated"
      ],
      "related": [
        {
          "word": "green band"
        }
      ],
      "tags": [
        "US",
        "not-comparable"
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ]
    }
  ],
  "word": "red band"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncomparable adjectives"
  ],
  "etymology_number": 1,
  "etymology_text": "From the red bands worn on their arms.",
  "forms": [
    {
      "form": "red bands",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "red band (plural red bands)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1967, Harley Cronin, The Screw Turns, page 51",
          "text": "It was an extension of the American Trusty system, as was the appointment of other selected prisoners to be 'Red Bands'.",
          "type": "quotation"
        },
        {
          "ref": "2012, Charlie Seiga, Killer, page 75",
          "text": "A red band was a trusty prisoner who could go anywhere in the prison. His job was taking mail to the main office and delivering any other messages for the screws or staff. Red bands had a bad name amongst the rest of the prisoners.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A trusty; a trusted prisoner given special privileges."
      ],
      "links": [
        [
          "trusty",
          "trusty"
        ],
        [
          "prisoner",
          "prisoner"
        ]
      ],
      "raw_glosses": [
        "(UK) A trusty; a trusted prisoner given special privileges."
      ],
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "red band"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English uncomparable adjectives"
  ],
  "derived": [
    {
      "word": "red band trailer"
    },
    {
      "word": "red band teaser"
    },
    {
      "word": "red band release"
    }
  ],
  "etymology_number": 2,
  "etymology_text": "From the red color of the horizontal bar on the cinematic rating screen at the start of the show.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "red band (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "green band"
    }
  ],
  "senses": [
    {
      "categories": [
        "American English",
        "en:Film genres"
      ],
      "glosses": [
        "R-rated"
      ],
      "links": [
        [
          "film",
          "film#Noun"
        ],
        [
          "R-rated",
          "R-rated"
        ]
      ],
      "raw_glosses": [
        "(US, film) R-rated"
      ],
      "tags": [
        "US",
        "not-comparable"
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ]
    }
  ],
  "word": "red band"
}