australian
n. countable A1 Beginner US //ɔˈstɹeɪɫjən// aus·tralian
n. a person from Australia or someone who has Australian citizenship. You can also use it to describe the way people speak or act in that country.
n. a native or inhabitant of Australia, or a person of Australian descent. Often used to refer to the specific variety of English spoken on the continent.
My new neighbor is an Australian from Sydney.
The local café is run by an Australian who makes the best flat whites in the city.
While many people assume every Australian lives near the beach, the vast majority of the population is concentrated in a few highly urbanized coastal hubs.
From Australia + -an.
Usage
Capitalized in all contexts. When referring to the language variety, it is typically treated as uncountable.