/ Dictionary / Index W wonder boy: Meaning and Definition of Find definitions for: won'der boy" Pronunciation: [key] a young man who is unusually successful or especially popular. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wonderberry wonder child Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language