/ Dictionary / Index B breast timber: Meaning and Definition of Find definitions for: breast' tim"ber Pronunciation: [key] — Building Trades. Building Trades. wale (def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. breastsummer breast wall Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language