The acronym XR used to refer to “Extended Reality”. But more recently I see that it is referring to “Cross Reality”. The general idea, as I understand it, is that Cross Reality is an overarching term that describes all of the possible ways to “cross” things that are virtual (like computer graphics) together with things that are real (like physical objects and other people).
So the term Cross Reality, or XR, is meant to encompass Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR). I can see how it is useful to have a single term to talk about the entire larger topic.
On the other hand, the word “cross” itself has multiple meanings, which can lead to some confusion. Part of me sees the term “Cross Reality” and just thinks “The Gods are angry.”
Then there was XR the company (spelled Exar). Cool logo.
https://en.wikipedia.org/wiki/Exar_Corporation