/ Dictionary / Index B benef.: Meaning and Definition of Find definitions for: benef. Pronunciation: [key] beneficiary. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Benedictus benefaction Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language