/ Dictionary / Index B box wrench: Meaning and Definition of Find definitions for: box' wrench" Pronunciation: [key] a wrench having ends that surround the nut or head of a bolt. See illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. boxwood boxy Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language