waiไหว้
hear the word
Etiquette
Meaning
the palms-together, slight-bow greeting gesture
Literally: to pay respect
In a sentence
เขาไหว้ผู้ใหญ่ทุกครั้ง
khao wai phu yai thuk khrang
He wais elders every time.
How it’s used
hand height signals the level of respect shown