/ Dictionary / Index P Piave: Meaning and Definition of Find definitions for: Pia•ve Pronunciation: (pyä've), [key] — n. a river in NE Italy, flowing S and SE into the Adriatic. 137 mi. (220 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Piauí piazza Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language