/ Dictionary / Index B better half: Meaning and Definition of Find definitions for: bet'ter half' Pronunciation: [key] a person's wife. a person's husband. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Better Business Bureau betterment Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language