/ Dictionary / Index G green osier: Meaning and Definition of Find definitions for: green' o'sier Pronunciation: [key] a dogwood tree, Cornus alternifolia, of the eastern U.S., having clusters of small white flowers and dark-blue fruit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. green onion Greenough 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