geographical name
Aus·​tra·​lia | \ ȯ-ˈstrāl-yə How to pronounce Australia (audio) , ä-, ə- \

Definition of Australia

1 continent of the eastern hemisphere southeast of Asia and south of the Equator area 2,948,366 square miles (7,665,751 square kilometers)
2 or Commonwealth of Australia dominion of the Commonwealth of Nations including the continent of Australia and the island of Tasmania; capital Canberra area 2,988,902 square miles (7,741,220 square kilometers), population 23,470,000 — see also australian

Learn More About Australia

Dictionary Entries Near Australia

Austral English


Australia Day

See More Nearby Entries 

Statistics for Australia

Cite this Entry

“Australia.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

More from Merriam-Webster on Australia

Nglish: Translation of Australia for Spanish Speakers

Britannica English: Translation of Australia for Arabic Speakers


Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

Test your knowledge - and maybe learn something along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!