Ορισμός και Σημασία του "[know] where {sb} [stand]"

What is the origin of the idiom "know where someone stands" and when to use it?

The idiom "know where someone stands" likely originates from the idea of having a clear and defined position or status in a particular situation, relationship, or interaction. It is used to signify having a comprehensive understanding of how one is perceived, valued, or regarded by another person.