/ Dictionary / Index U Upper Austria: Meaning and Definition of Find definitions for: Up'per Aus'tria Pronunciation: [key] a province in N Austria. 1,270,426; 4631 sq. mi. (11,995 sq. km). Cap.: Linz. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. upper atmosphere upper bound Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language