/ Dictionary / Index S Sybil: Meaning and Definition of Find definitions for: Syb•il Pronunciation: (sib'ul), [key] — n. a female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sybaritic sycamine Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language