/ Dictionary / Index I interior decoration: Meaning and Definition of Find definitions for: inte'rior decora'tion Pronunciation: [key] See materials used to decorate an interior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. interior angle interior design Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language