/ Dictionary / Index G granny dress: Meaning and Definition of Find definitions for: gran'ny dress" Pronunciation: [key] a loose-fitting, ankle-length dress, usually with long sleeves and a high collar and sometimes having flounces, ruffles, or lace trimming. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. granny granny dumping Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language