/ Dictionary / Index W Western Australia: Meaning and Definition of Find definitions for: West'ern Austral'ia Pronunciation: [key] a state in W Australia. 1,273,624; 975,920 sq. mi. (2,527,635 sq. km). Cap.: Perth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. western Western blot Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language