/ Dictionary / Index S sibship: Meaning and Definition of Find definitions for: sib•ship Pronunciation: (sib'ship), [key] — n. Anthropol. the condition of being a member of a sib. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sibling sibyl Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language