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

Recent Examples on the Web

As Diamond points out, standards for such evidence are well established for injections, and vaccine makers can follow the rule book: regulations point to particular antibodies and specific ways to measure them with a simple blood test. —Stephani Sutherland, Scientific American, 15 Oct. 2024

Unfortunately, the official scorer and the rule book don’t see it the same way. —Dan Freedman, Forbes, 14 Oct. 2024

The flip side of that is that there's such a rule book of storytelling that at times feels limiting. —Angela Watercutter, WIRED, 13 Oct. 2024

With the United States looking inward and Trump having torn up the traditional foreign policy rule book, France’s new president, Emmanuel Macron, is seeking to reinvigorate the European project as a way of restoring French leadership. —Natalie Nougayrède, Foreign Affairs, 15 Aug. 2017