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

See Examples For:

Oceania

A major new study led by Yale University is helping fill a longstanding gap in genetics research by providing one of the most comprehensive examinations yet of human genetic diversity in Oceania.

From Science Daily ● Jun. 14, 2026

Canada and Mexico – traveling to locations in Europe, Asia, Oceania and South America — the sprint to the end, while still challenging, was suddenly manageable.

From Los Angeles Times ● Jun. 7, 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

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

He knew what was meant by Oceania, and that he himself was a citizen of Oceania.

From "1984" by George Orwell