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

From 1995 to 2005, the MLB rule book defined strikes as the area over home plate from the midpoint between the shoulders and the top of the pants, down to the bottom of the knees. —Steve Henson, Los Angeles Times, 1 Apr. 2026

Besides those rule book changes, Canada’s film and TV awards this year will also feature top Canadian broadcasters CBC, Bell Media, and Corus partnering to simultaneously broadcast the final prize-giving on May 31 from Toronto. —Etan Vlessing, HollywoodReporter, 25 Mar. 2026

The alliance is built on the political pledge that an attack on one ally must be met with a response from them all — the collective security guarantee enshrined in Article 5 of its rule book. —Lorne Cook, Fortune, 1 Feb. 2026

For those curious, yes, the NBA’s rule book addresses situations such as Thursday’s in Chicago, when the Heat’s game against the Chicago Bulls was postponed because of condensation creating a court at the United Center deemed too slick. —Ira Winderman, Sun Sentinel, 10 Jan. 2026

Rhymes for rule book

• kinderhook
• meadowbrook
• overlook
• overtook
• pocketbook
• storybook
• tillamook
• undertook
• betook
• casebook
• chapbook
• checkbook