/ Dictionary / Index M Margaret Rose: Meaning and Definition of Find definitions for: Mar'garet Rose' Pronunciation: [key] born 1930, English princess (daughter of George VI; sister of Elizabeth II). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Margaret of Valois margaric acid Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language