rule book

noun

: a book that contains the official set of rules that must be followed in a game, job, etc.
always carries the rule book in his back pocket to every game
also : the rules in such a book
The rule book says that once the puck fully crosses the line it is a goal.
often used figuratively
He's a maverick when it comes to decorating, throwing away the rule book.

Examples of rule book in a Sentence

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Much of the unpredictability is down to Francis’ shake-up of the College of Cardinals, with his appointments better reflecting the universal church and ripping up the old, unwritten rule book for choosing cardinals whereby a bishop of a certain diocese was automatically given a red hat. Lauren Kent, CNN Money, 7 May 2025 But the European Commission is aiming for fines that fall far below that threshold, three officials said, as the bloc’s digital rule book is relatively new and the decisions could still be challenged in court. ArsTechnica, 28 Mar. 2025 Adding to the challenge: One of these giants, the United States, has thrown out the rule book governing global trade. Mark Landler, New York Times, 20 May 2025 However, when asked by Stansbury how USA Fencing pertained to the House Oversight and Accountability Committee, which the subcommittee falls under, Greene held up the committee rule book. Rachel Scully, The Hill, 7 May 2025 See All Example Sentences for rule book

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Cite this Entry

“Rule book.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rule%20book. Accessed 3 Jul. 2025.

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