Formal:
* สวัสดี (sa-wat-dee): This is the most common and polite greeting, used for everyone you don't know well or are of higher social standing.
Informal:
* หวัดดี (wat-dee): This is a more casual greeting, used with friends and family.
* สบายดี (sa-bai-dee): This literally means "are you well?" and is a very friendly greeting used with people you know well. You would respond with "สบายดี (sa-bai-dee)" as well.
Adding "you" to the greeting:
* สวัสดีครับ (sa-wat-dee krap): This is the formal "hello" for men.
* สวัสดีค่ะ (sa-wat-dee ka): This is the formal "hello" for women.
* หวัดดีครับ (wat-dee krap): This is the informal "hello" for men.
* หวัดดีค่ะ (wat-dee ka): This is the informal "hello" for women.
Note: The "krap" and "ka" are polite particles that indicate respect and are used at the end of sentences.
Writing:
* สวัสดี (sa-wat-dee)
* หวัดดี (wat-dee)
* สบายดี (sa-bai-dee)
Pronunciation:
* sa-wat-dee: The "a" in "sa" is similar to the "a" in "father". The "wat" sounds like "what" but with a short "a". The "dee" sounds like "day".
* wat-dee: The "wat" sounds like "what" but with a short "a". The "dee" sounds like "day".
* sa-bai-dee: The "sa" is similar to the "a" in "father". The "bai" sounds like "bye" with a short "a". The "dee" sounds like "day".
You can practice your pronunciation by listening to online resources or asking a Thai speaker.