Merriam-Webster's Collegiate® Dictionary, 11th Edition
geographical name continent of the eastern hemisphere SE of Asia & S of the equator area 2,948,366 square miles (7,665,751 square kilometers ), dominion of the Commonwealth of Nations including the continent of australia & island of Tasmania capital Canberra area 2,967,909 square miles (7,716,563 square kilometers ), population 17,562,000
Merriam-Webster's Collegiate® Dictionary, 11th Edition
australia day
noun
Date: 1911
a national holiday in Australia commemorating the landing of the British at Sydney Cove in 1788 and observed on the Monday of or next following January 26