/ Dictionary / Index S sack dress: Meaning and Definition of Find definitions for: sack' dress" Pronunciation: [key] a loose, unbelted dress that hangs straight from the shoulder to the hemline. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sack coat sacker Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language