How do you say "yes" in Thai?

The word for "yes" in Thai is ใช่ (chai). This term is commonly used to affirm a statement or agreement in conversations, making it an essential part of basic communication in Thai.

Understanding the context of the other options helps clarify why they do not represent the affirmative response. ไม่ (mai) means "no," so it serves to negate rather than affirm. น้ำ (nam) translates to "water," which is unrelated to agreement. Lastly, สวัสดี (sawasdee) is a greeting that means "hello," which is also not used to express affirmation. Therefore, ใช่ (chai) is the clear and correct choice for saying "yes" in Thai.