The Vietnamese word "sảng" can be understood in a few different ways, primarily as an adjective or a verb.
As an Adjective: You can use "sảng" to describe someone who is not thinking clearly due to illness or excitement.
As a Verb: In its verb form, it often describes the action of raving or talking incoherently.
In summary, "sảng" is a versatile word that primarily refers to a state of delirium or raving caused by fever or excitement.