I have noticed that a couple of users have been trying to categorize questions about multiway switching setups with their own tag. While the effort is appreciated -- I've been rejecting the edits because the terminology used is region specific -- saying something is a "3-way switch" is only meaningful to someone in North America.
Is there a worldwide term for switch setups that control a fixture for more than one location? I suspect that "multiway switch" is the closest that I have heard to such a universal phrase, but I don't know how the practices of non-Anglophone countries are translated either.