/ Dictionary / Index S sonal: Meaning and Definition of Find definitions for: so•nal Pronunciation: (sōn'l), [key] — adj. pertaining to sound; sonic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. son sonance Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language