/ Thesaurus / S Synonyms of st. augustine grass Find synonyms for: Noun1. St. Augustine grass, Stenotaphrum secundatum, buffalo grass, grassusage: low mat-forming grass of southern United States and tropical America; grown as a lawn grassWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language