- of or relating to Australia, its inhabitants, or their languages.
- belonging to a geographical division comprising Australia, New Zealand, Tasmania, Sulawesi, the Moluccas, Papua New Guinea, and adjacent smaller islands.
- belonging or pertaining to a geographical division comprising Australia and Tasmania.
- a native or inhabitant of Australia.
- an Aboriginal inhabitant of Australia.
- the group of languages of the Aborigines of Australia, consisting of about three hundred languages. Abbreviations: Austral, Austral.
- a native or inhabitant of Australia
- the form of English spoken in Australia
- a linguistic phylum consisting of the languages spoken by the native Australians
- of, relating to, or characteristic of Australia, the Australians, or their form of English
- of, relating to, or belonging to the phylum of languages spoken by the native Australians
- of or denoting a zoogeographical region consisting of Australia, New Zealand, Polynesia, New Guinea, and the Moluccas