Breadcrumb Home > Thesaurus > P Synonyms of phon Find synonyms for: Noun1. phon, sound unitusage: a unit of subjective loudnessWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of phon (Dictionary) ✖ Related Content Daily Word Quiz: perambulate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language