I don't use the word, but do remember a time when I wondered why folks would own rigs like the one we now have. I divide our trips into one of two categories, camping or travelling. In our younger days, all we had time for was camping. Local weekend trips, etc. Tents and small trailers were great at that job. However, life changed and we found ourselves often to have time to be on the road for months. At this point, we HAD to be more comfortable and thus we ended up with our coach.
Glamping? Not to me, because it isn't intended to be a form of camping. It's intended to be a private hotel. We do still use the coach for "camping". We spend local weekends in the woods and don't spend much time in it other than sleeping.
So, I see it divided by use more than equipment type.