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n. pl. Thai or Thais
a. A native or inhabitant of Thailand.
b. A member of a Tai-speaking people who constitute the predominant ethnic group of Thailand.
2. The language of the Tai family that is the official language of Thailand.
Of or relating to Thailand or its peoples, languages, or cultures.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biography) 4th-century bc Athenian courtesan; mistress of Alexander the Great
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014