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

It also concludes that the UK has the second-lowest healthy life expectancy of high-income countries, which includes those in western Europe, the Nordics, North America and Oceania.

From BBC • Apr. 27, 2026

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

From Salon • Mar. 21, 2026

Its brands include the more premium Oceania Cruises and the luxury Regent Seven Seas Cruises.

From The Wall Street Journal • Feb. 17, 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

He was an object of hatred more constant than either Eurasia or Eastasia, since when Oceania was at war with one of these powers it was generally at peace with the other.

From "1984" by George Orwell