Nouns

(n)Thai, Siamese, Central Thaia branch of the Tai languages, spoken in central Thailand, centered in Bangkok
(n)Thai, Tai, Siamesea native or inhabitant of Thailand
(n)Siamese cat, Siamesea slender short-haired blue-eyed breed of cat having a pale coat with dark ears paws face and tail tip

Adjectives

(a)Thai, Tai, Siameseof or relating to or characteristic of Thailand or its people“Siamese kings”, “different Thai tribes live in the north”
(a)Thai, Tai, Siameseof or relating to the languages of the Thai people“Thai tones”
(a)Thai, Tai, Siameseof or relating to Thailand“the Thai border with Laos”