/ Dictionary / Index S Syene: Meaning and Definition of Find definitions for: Sy•e•ne Pronunciation: (sī-ē'nē), [key] — n. ancient name of Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sydney silky syenite Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language