/ Dictionary / Index P po: Meaning and Definition of Find definitions for: po Pronunciation: (pō), [key] — pl. pos. a chamber pot. Po Pronunciation: (pō), [key] — n. a river in Italy, flowing E from the Alps in the NW to the Adriatic. 418 mi. (669 km) long. Ancient, Po Pronunciation: [key] — Symbol, Chem. polonium. po. Pronunciation: [key] — Baseball. Baseball. put-out; put-outs. P.O. Pronunciation: [key] parole officer. petty officer. postal (money) order. post office. p.o. Pronunciation: [key] (in prescriptions) by mouth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: po (Thesaurus) Pnyx POA Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language