/ Dictionary / Index P polyphone: Meaning and Definition of Find definitions for: pol•y•phone Pronunciation: (pol'ē-fōn"), [key] — n. Phonet. a polyphonic letter or symbol. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polyphone (Thesaurus) polyphenol polyphonic Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language