<p><strong>Adjective</strong></p><ul><li>of or relating to Australia, its inhabitants, or their languages.</li><li>belonging to a geographical division comprising Australia, New Zealand, Tasmania, Sulawesi, the Moluccas, Papua New Guinea, and adjacent smaller islands.</li><li>belonging or pertaining to a geographical division comprising Australia and Tasmania.</li></ul><p><strong>Noun</strong></p><ul><li>a native or inhabitant of Australia.</li><li>an Aboriginal inhabitant of Australia.</li><li>the group of languages of the Aborigines of Australia, consisting of about three hundred languages.</li></ul>