/ Dictionary / Index B break-even: Meaning and Definition of Find definitions for: break-e•ven Pronunciation: (brāk'ē'vun), [key] — adj. having income exactly equal to expenditure, thus showing neither profit nor loss. —n. See the stage at which a fission or fusion reaction becomes self-sustaining. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: break-even (Thesaurus) breaker strip break-even point Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language