This is the 4767th most frequent Swedish word.
australian
Australian.
The word 'australian' is used as a noun referring to a person from Australia.
Min vän är en australian som har bott här i fem år.
My friend is an Australian who has lived here for five years.
The word 'australianska' serves as an adjective modifying 'filmen' (movie) to indicate its origin.
Jag gillar den där australianska filmen.
I like that Australian movie.
The word 'australianska' is an adjective describing 'turister' (tourists), indicating their nationality.