- Thai, Tai, Siamese - of or relating to or characteristic of Thailand or its people; "Siamese kings"; "different Thai tribes live in the north"
- Thai, Tai, Siamese - of or relating to the languages of the Thai people; "Thai tones"
- Thai, Tai, Siamese - of or relating to Thailand; "the Thai border with Laos"
- Thai, Tai, Siamese - a native or inhabitant of Thailand
--1 is a kind of Asian, Asiatic
--1 is a member of Thailand, Kingdom of Thailand, Siam - Tai - the most widespread and best known of the Kadai family of languages
--2 is a kind of Kadai, Kam-Tai, Kadai language
--2 has particulars:White Tai; Red Tai; Tai Dam, Black Tai; Tai Nuea, Chinese Shan, Dehong Dai; Tai Long, Shan; Tai Lue, Xishuangbanna Dai; Tai Yuan, Kam Muang; Khuen; Lao; Khamti; Southern Tai; Tay; Nung; Tho; Thai, Siamese, Central Thai; Bouyei, Buyi; Zhuang; Yay; Saek