Australia ( or , or more formally as ), officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the continental mainland (the world's smallest), "Smallest continent and sixth largest country (in area) on Earth, lying between the Pacific and Indian oceans." "Most people recognize seven continents—Asia, Africa, North America, South America, Antarctica, Europe, and Australia, from largest to smallest—although sometimes Europe and Asia are considered… (More on Australia)