/ Dictionary / Index P Platte: Meaning and Definition of Find definitions for: Platte Pronunciation: (plat), [key] — n. a river flowing E from the junction of the North and South Platte rivers in central Nebraska to the Missouri River S of Omaha. 310 mi. (500 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: platte (Thesaurus) Plattdeutsch Plattensee Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language