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Thailand

American  
[tahy-land, -luhnd] / ˈtaɪˌlænd, -lənd /

noun

  1. Formerly Siam.  a kingdom in SE Asia: official name of Siam 1939–45 and since 1949. 198,242 sq. mi. (513,445 sq. km). Bangkok.

  2. Also called Gulf of Siam.  Gulf of. an arm of the South China Sea, S of Thailand.


Thailand British  
/ ˈtaɪˌlænd /

noun

  1. Former name (until 1939 and 1945–49): Siam.  a kingdom in SE Asia, on the Andaman Sea and the Gulf of Thailand: united as a kingdom in 1350 and became a major SE Asian power; consists chiefly of a central plain around the Chao Phraya river system, mountains rising over 2400 m (8000 ft) in the northwest, and rainforest the length of the S peninsula. Parts of the SW coast suffered badly in the Indian Ocean tsunami of December 2004. Official language: Thai. Official religion: (Hinayana) Buddhist. Currency: baht. Capital: Bangkok. Pop: 67 448 120 (2013 est). Area: 513 998 sq km (198 455 sq miles)

  2. Former name: Gulf of Siam.  an arm of the South China Sea between the Malay Peninsula and Indochina

"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

Thailand Cultural  
  1. Constitutional monarchy in southern Southeast Asia, bordered by Burma to the west and northwest, Laos to the north and east, Cambodia to the southeast, and the Gulf of Siam (an arm of the Pacific Ocean) and Malaysia to the south. Its capital and largest city is Bangkok.


Discover More

Strongly supported the United States during the Vietnam War, Thailand was the site of American air bases until 1976, when relations with the United States deteriorated.

During the early 1990s, its economy became one of the strongest in Asia, but it experienced a sharp downturn in the mid-1990s.

Thailand was formerly called Siam.

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.

Some suppliers have prepared manufacturing capacity in Thailand and other Southeast Asian countries for Tesla, partly to avoid U.S. tariffs on Chinese goods, the people said.

From The Wall Street Journal • Apr. 3, 2026

Officials in Vietnam, Thailand and Sri Lanka have already encouraged remote work.

From MarketWatch • Apr. 1, 2026

People in Thailand have been told to keep air conditioning at 26-27C, while all government agencies have been told to work from home.

From BBC • Mar. 30, 2026

Thailand has ordered civil servants to work from home and raised air-conditioning temperature limits.

From Barron's • Mar. 30, 2026

The commander says, Thailand is much farther on one engine.

From "Inside Out and Back Again" by Thanhha Lai