/ Dictionary / Index L La Plata: Meaning and Definition of Find definitions for: La Pla•ta Pronunciation: (lä plä'tä), [key] a seaport in E Argentina. 560,341. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lapland lap link Related Content Daily Word Quiz: malady Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language