/ Dictionary / Index T twinberry: Meaning and Definition of Find definitions for: twin•ber•ry Pronunciation: (twin'ber"ē, -bu-rē), [key] — pl. -ries. the partridgeberry, Mitchella repens. a North American honeysuckle shrub, Lonicera involucrata, having involucrate flowers of various colors. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: twinberry (Thesaurus) twin bed twin bill Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language