/ Dictionary / Index O oste-: Meaning and Definition of Find definitions for: oste- Pronunciation: [key] var. ofbefore a vowel: osteitis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. O star osteal Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language