/ Dictionary / Index P piano nobile*: Meaning and Definition of Find definitions for: pia•no no•bi•le Pronunciation: (pyä'nô nô'bē-le), [key] — pl. pia•ni no•bi•li the principal story of a large building, as of a palace or villa. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pianola piano player Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language