"B roll" meaning in English

{
  "forms": [
    {
      "form": "B rolls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "B roll (usually uncountable, plural B rolls)",
      "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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          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
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        {
          "kind": "other",
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Film",
          "orig": "en:Film",
          "parents": [
            "Entertainment",
            "Mass media",
            "Culture",
            "Media",
            "Society",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Television",
          "orig": "en:Television",
          "parents": [
            "Broadcasting",
            "Mass media",
            "Media",
            "Telecommunications",
            "Culture",
            "Communication",
            "Technology",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "A roll"
        }
      ],
      "examples": [
        {
          "ref": "2018 July 26, Ignatiy Vishnevetsky, “A documentary muckraker takes on the tech sector of health in The Bleeding Edge”, in The Onion AV Club, archived from the original on 2018-07-29:",
          "text": "The Bleeding Edge isn’t an audacious or essayistic piece of filmmaking; it’s overstretched with talking-head interviews, montages of corporate videos, and creepy B-roll shots of hospital equipment.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Supplemental or alternative footage intercut with the main shot, used, for example, to indicate simultaneous action or flashbacks."
      ],
      "id": "en-B_roll-en-noun-tKHmc9YU",
      "links": [
        [
          "television",
          "television"
        ],
        [
          "film",
          "film#Noun"
        ],
        [
          "footage",
          "footage"
        ],
        [
          "intercut",
          "intercut"
        ],
        [
          "shot",
          "shot"
        ],
        [
          "simultaneous",
          "simultaneous"
        ],
        [
          "action",
          "action"
        ],
        [
          "flashback",
          "flashback"
        ]
      ],
      "raw_glosses": [
        "(television, film) Supplemental or alternative footage intercut with the main shot, used, for example, to indicate simultaneous action or flashbacks."
      ],
      "synonyms": [
        {
          "word": "B-roll"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ],
      "translations": [
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "podsʺjómka",
          "sense": "supplemental or alternative footage",
          "tags": [
            "feminine"
          ],
          "word": "подсъёмка"
        }
      ],
      "wikipedia": [
        "en:B-roll"
      ]
    }
  ],
  "word": "B roll"
}

{
  "coordinate_terms": [
    {
      "word": "A roll"
    }
  ],
  "forms": [
    {
      "form": "B rolls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "B roll (usually uncountable, plural B rolls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
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        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Russian translations",
        "en:Film",
        "en:Television"
      ],
      "examples": [
        {
          "ref": "2018 July 26, Ignatiy Vishnevetsky, “A documentary muckraker takes on the tech sector of health in The Bleeding Edge”, in The Onion AV Club, archived from the original on 2018-07-29:",
          "text": "The Bleeding Edge isn’t an audacious or essayistic piece of filmmaking; it’s overstretched with talking-head interviews, montages of corporate videos, and creepy B-roll shots of hospital equipment.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Supplemental or alternative footage intercut with the main shot, used, for example, to indicate simultaneous action or flashbacks."
      ],
      "links": [
        [
          "television",
          "television"
        ],
        [
          "film",
          "film#Noun"
        ],
        [
          "footage",
          "footage"
        ],
        [
          "intercut",
          "intercut"
        ],
        [
          "shot",
          "shot"
        ],
        [
          "simultaneous",
          "simultaneous"
        ],
        [
          "action",
          "action"
        ],
        [
          "flashback",
          "flashback"
        ]
      ],
      "raw_glosses": [
        "(television, film) Supplemental or alternative footage intercut with the main shot, used, for example, to indicate simultaneous action or flashbacks."
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "broadcasting",
        "film",
        "media",
        "television"
      ],
      "wikipedia": [
        "en:B-roll"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "B-roll"
    }
  ],
  "translations": [
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "podsʺjómka",
      "sense": "supplemental or alternative footage",
      "tags": [
        "feminine"
      ],
      "word": "подсъёмка"
    }
  ],
  "word": "B roll"
}