It's clear that you could reasonably use supervision without using advisor, but I'm confused as to how one would use advisor without using supervision as the advisor's job is to provide supervision (as seems to be noted in the description of supervision). How would you pick whether or not to use both or just one when referring to advisors?
For example, how would you tag a question like How to have productive meetings with Ph.D supervisor? (Context: I submitted an edit to add both tags to this question.)