rule book
noun [C, usually singular]Definition
› the set of ideas or principles that control an organization, job, or activity: The industry rule book needs to be updated to meet new safety standards. He won promotions by delivering results without challenging the company rule book.
› the way things are usually done in a particular activity, area of business, etc.: Designers threw out the rule book and layered pieces such as skirts over trousers.
(Definition of rule book noun from the Cambridge Business English Dictionary
© Cambridge University Press)
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