/ Dictionary / Index T Three-D: Meaning and Definition of Find definitions for: 3-D Pronunciation: (thrē'dē'), [key] — adj. of, pertaining to, or representing something in three dimensions; three-dimensional: 3-D movies. —n. a three-dimensional form or appearance: My dreams are always in 3-D. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: three-d (Thesaurus) three-cornered three-decker Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language