/ Dictionary / Index P Piauí: Meaning and Definition of Find definitions for: Piau•í Pronunciation: (pyou-ē'), [key] — n. a state in NE Brazil. 2,188,148; 96,860 sq. mi. (250,870 sq. km). Cap.: Teresina. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Piatigorsky Piave 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