Australias

Australiases is not an official or widely recognized term. The standard and widely recognized name for the country and continent is Australia, used in the singular. The plural form Australias does not appear in formal authorities and does not reflect any recognized political division. In practice, Australias may appear in informal or fictional contexts to refer to multiple entities named Australia, or as a creative device. For example, speculative fiction might imagine parallel or historical entities called Australias, or a discussion about plural forms in English might briefly mention the term. Outside of such contexts, its use is generally considered nonstandard.

Etymology and official usage: The name Australia appeared in English in the early 19th century and was popularized by explorers and cartographers; the country federated in 1901, uniting six states.

Guidance: In formal writing and journalism, use Australia for the country and do not attempt to pluralize it as Australias. When referring to the broader geographic region, consider terms such as the Australian continent or Oceania.