"off-book" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "off-",
        "3": "book"
      },
      "expansion": "off- + book",
      "name": "pre"
    }
  ],
  "etymology_text": "From off- + book.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "adjective",
        "head": "off-book"
      },
      "expansion": "off-book",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Theater",
          "orig": "en:Theater",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "47 53",
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          "source": "w+disamb"
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          "source": "w+disamb"
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        {
          "_dis": "46 54",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Able to perform scripted material from memory, without need to refer to the text."
      ],
      "id": "en-off-book-en-adj-1w~~p3li",
      "links": [
        [
          "theater",
          "theater"
        ]
      ],
      "raw_glosses": [
        "(theater) Able to perform scripted material from memory, without need to refer to the text."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "theater"
      ],
      "translations": [
        {
          "_dis1": "86 14",
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "lang_code": "cmn",
          "roman": "tuōgǎo",
          "sense": "Able to perform scripted material from memory",
          "word": "脫稿 /脱稿"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Accounting",
          "orig": "en:Accounting",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "43 57",
          "kind": "other",
          "name": "English terms prefixed with off-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
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          "_dis": "46 54",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
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        },
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          "_dis": "42 58",
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w+disamb"
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              30
            ]
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          "ref": "2013, James Palmer, ‘Kept women’, Aeon:",
          "text": "An enormous amount of off-book money sloshes around Chinese business and officialdom, and some of it runs into handbags.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Off the books, not officially recorded."
      ],
      "id": "en-off-book-en-adj-HISayCFp",
      "links": [
        [
          "accounting",
          "accounting#Noun"
        ],
        [
          "Off the books",
          "off the books"
        ]
      ],
      "raw_glosses": [
        "(accounting) Off the books, not officially recorded."
      ],
      "topics": [
        "accounting",
        "business",
        "finance"
      ]
    }
  ],
  "word": "off-book"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English terms prefixed with off-",
    "Entries with translation boxes",
    "Pages with 1 entry",
    "Pages with entries",
    "Terms with Mandarin translations"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "off-",
        "3": "book"
      },
      "expansion": "off- + book",
      "name": "pre"
    }
  ],
  "etymology_text": "From off- + book.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "adjective",
        "head": "off-book"
      },
      "expansion": "off-book",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "en:Theater"
      ],
      "glosses": [
        "Able to perform scripted material from memory, without need to refer to the text."
      ],
      "links": [
        [
          "theater",
          "theater"
        ]
      ],
      "raw_glosses": [
        "(theater) Able to perform scripted material from memory, without need to refer to the text."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "theater"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "Quotation templates to be cleaned",
        "en:Accounting"
      ],
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            ]
          ],
          "ref": "2013, James Palmer, ‘Kept women’, Aeon:",
          "text": "An enormous amount of off-book money sloshes around Chinese business and officialdom, and some of it runs into handbags.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Off the books, not officially recorded."
      ],
      "links": [
        [
          "accounting",
          "accounting#Noun"
        ],
        [
          "Off the books",
          "off the books"
        ]
      ],
      "raw_glosses": [
        "(accounting) Off the books, not officially recorded."
      ],
      "topics": [
        "accounting",
        "business",
        "finance"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "lang_code": "cmn",
      "roman": "tuōgǎo",
      "sense": "Able to perform scripted material from memory",
      "word": "脫稿 /脱稿"
    }
  ],
  "word": "off-book"
}