/ Dictionary / Index L lear board: Meaning and Definition of Find definitions for: lear' board" Pronunciation: [key] (on a sloping roof&hasp;) a board laid next to the gutter to receive the turned-up edge of the metal lining. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lear learn Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language