Breadcrumb Home > Dictionary > Index B board rule: Meaning and Definition of Find definitions for: board' rule" Pronunciation: [key] — Building Trades. Building Trades. a measuring device having scales for finding the cubic contents of a board without calculation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. boardroom boardsailing TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: recherch Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language