/ Dictionary / Index C channel back: Meaning and Definition of Find definitions for: chan'nel back" Pronunciation: [key] an upholstered chair or sofa back having deep vertical grooves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. channel channel bass Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language