/ Dictionary / Index S smoke shelf: Meaning and Definition of Find definitions for: smoke' shelf" Pronunciation: [key] a ledge at the bottom of a smoke chamber, so made as to deflect or break downdrafts from the chimney. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. smoke screen smoke shop 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