/ Dictionary / Index B box canyon: Meaning and Definition of Find definitions for: box' can"yon Pronunciation: [key] a canyon with steep side walls terminating headwards in a vertical cliff. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. box camera boxcar Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language