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Australasia

American  
[aw-struh-ley-zhuh, -shuh] / ˌɔ strəˈleɪ ʒə, -ʃə /

noun

  1. Australia, New Zealand, and neighboring islands in the S Pacific Ocean.


Australasia British  
/ ˌɒstrəˈleɪzɪə /

noun

  1. Australia, New Zealand, and neighbouring islands in the S Pacific Ocean

  2. (loosely) the whole of Oceania

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Etymology

Origin of Australasia

Austral(ia) + Asia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The rise in fires was most pronounced in Southeast Asia and parts of Australasia.

From Science Daily • Mar. 19, 2026

Gafcon has members from across the world - including Africa, Asia, the Americas and Australasia – and claims to speak for the majority of the Global South, although that is contested.

From BBC • Mar. 5, 2026

In the case of the vast Australasia field, the crater is thought to lie beneath the ocean.

From Science Daily • Mar. 1, 2026

The ship spent many years carrying various cargoes to and from the Far East and Australasia before moving to Hawaii.

From BBC • Oct. 18, 2025

Oceania comprises the Americas, the Atlantic islands including the British Isles, Australasia, and the southern portion of Africa.

From "1984" by George Orwell

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