Southeast Asia

American  

[sohth-eest ey-zhuh, ey-shuh] / ˈsoʊθˌist ˈeɪ ʒə, ˈeɪ ʃə /

noun

1. the countries and land area of Brunei, Myanmar (Burma), Cambodia, East Timor, Indonesia, Laos, Malaysia, the Philippines, Singapore, Thailand, and Vietnam.

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Southeast Asia British  

noun

1. a region including Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Thailand, and Vietnam

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Southeast Asia Cultural  

1. A geographical subdivision of Asia that includes the following nations: Burma, Cambodia, Indonesia, Laos, Malaysia, the Philippines, Singapore, Thailand, and Vietnam.

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Other Word Forms

• Southeast Asian
  adjective

Example Sentences

The previous global record for rainforest habitation came from Southeast Asia and dated to around 70,000 years ago.

From Science Daily • May 20, 2026

Designed to rival China's investments around the Indian Ocean, New Delhi's colossal project will be built on Great Nicobar Island, a site offering a naval presence far closer to Southeast Asia than India's mainland.

From Barron's • May 18, 2026

Researchers have identified a gigantic new species of long necked dinosaur in Thailand that is now considered the largest dinosaur ever discovered in Southeast Asia.

From Science Daily • May 15, 2026

Eneos will acquire the assets, including the Caltex brand, to capture expected petroleum demand growth in Southeast Asia.

From The Wall Street Journal • May 14, 2026

Isn’t that prominence just an ephemeral phenomenon of the last few centuries, now fading behind the prominence of Japan and Southeast Asia?

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond