Thái (Thai) refers to a group of languages spoken primarily in Thailand and surrounding regions. The most widely spoken language in this group is Thai, the official language of Thailand. Thai is a tonal language, meaning that the pitch or intonation used when pronouncing a word can change its meaning. The Thái people, also known as the Tai, are an ethnic group that originated in southern China and migrated to Southeast Asia. They have a rich cultural heritage, including traditional music, dance, and cuisine. The Thái culture is known for its vibrant festivals and strong community ties.