/ Dictionary / Index H half dollar: Meaning and Definition of Find definitions for: half' dol'lar Pronunciation: [key] a silver or cupronickel coin of the U.S., equal to 50 cents. a silver or nickel coin of Canada, equal to 50 cents. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. half dime half-dozen Related Content Daily Word Quiz: divulge Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language