/ Dictionary / Index S Sylvania: Meaning and Definition of Find definitions for: Syl•va•ni•a Pronunciation: (sil-vā'nē-u, -vān'yu), [key] — n. a town in NW Ohio. 15,527. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sylvaner sylvanite 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