/ Dictionary / Index S St. Augustine grass: Meaning and Definition of Find definitions for: St. Augustine grass Pronunciation: [key] a low, mat-forming grass, Stenotaphrum secundatum, of the southern U.S. and tropical America, that is cultivated as a lawn grass. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. St. Augustine staumrel Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language