The Vietnamese word "phát vãng" is an old term that means to banish or exile someone. It refers to the act of forcing someone to leave a place, often as a punishment, and not allowing them to return. This word is not commonly used in everyday conversation but might be found in literature or historical texts.
In literature, "phát vãng" may be used metaphorically to describe someone feeling isolated or alienated from society or a group, even if they are not physically banished.
While "phát vãng" primarily means to banish, it can sometimes imply a sense of being cast out socially or emotionally, although this usage is less common.