/ Dictionary / Index P Prospero: Meaning and Definition of Find definitions for: Pros•per•o Pronunciation: (pros'pu-rō"), [key] — n. (in Shakespeare's The Tempest) the exiled Duke of Milan, who is a magician. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prosperity prosperous Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language