/ Dictionary / Index L Louisiana: Meaning and Definition of Find definitions for: Lou•i•si•an•a Pronunciation: (l-ē"zē-an'u, l"u-zē-, l"ē-), [key] — n. a state in the S United States. 4,203,972; 48,522 sq. mi. (125,672 sq. km). Cap: Baton Rouge. Abbr.: LA (for use with zip code), La. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: louisiana (Thesaurus) Louis heel Louisiana French Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language