/ Dictionary / Index B break of day: Meaning and Definition of Find definitions for: break' of day' Pronunciation: [key] dawn; daybreak. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. breakneck breakout Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language