Oceania

American  

[oh-shee-an-ee-uh, -ah-nee-uh] / ˌoʊ ʃiˈæn i ə, -ˈɑ ni ə /

Also Oceanica

noun

1. the islands of the central and southern Pacific, including Micronesia, Melanesia, Polynesia, and traditionally Australasia. About 3,450,000 sq. mi. (8,935,500 sq. km).

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Oceania British  

/ ˌəʊʃɪˈɑːnɪə /

noun

1. the islands of the central and S Pacific, including Melanesia, Micronesia, and Polynesia: sometimes also including Australasia and the Malay Archipelago

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Other Word Forms

• Oceanian adjective

Compare meaning

How does oceania compare to similar and commonly confused words? Explore the most common comparisons:

• Oceania vs. Australia

Example Sentences

I tested Avast’s performance by running multiple speed tests, spanning North America, Europe, and Oceania.

From Salon • Mar. 21, 2026

The rise came as Japan said it was beginning the release of its strategic oil reserves after the International Energy Agency indicated earlier that the release would begin in Asia and Oceania before other regions.

From Barron's • Mar. 16, 2026

Meanwhile, the International Energy Agency said oil reserves from Asian and Oceania countries will be released immediately, while stocks from Europe and the Americas will start flowing by the end of March.

From The Wall Street Journal • Mar. 16, 2026

"Once it got into wild bird populations, we lost ability to control this virus. Now it's established in wild bird populations in all the continental regions of the world except Oceania."

From Science Daily • Feb. 12, 2026

Collectively, the Party owns everything in Oceania, because it controls everything and disposes of the products as it thinks fit.

From "1984" by George Orwell