/ Dictionary / Index A AUS: Meaning and Definition of Find definitions for: AUS Pronunciation: [key] Army of the United States. Aus. Pronunciation: [key] Austria. Austrian. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aus (Thesaurus) Aurungzeb Ausable Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language