Want this question answered?
you call a traveling salesperson a pillar
pokeflute
you have to call it, but you have to be a wolf
They call a square a square.
People call it the Stone Age because of the about of stone tools at the time.
A tapering pillar is commonly referred to as a "tapered column" or "tapered pillar."
Key-stone
You call them principal square roots.
It is the keystone.
a quarry
mason
A recluse living on top of a high pillar would be called a "stylite.", or, more generally, an "ascetic" (which refers to living under extreme conditions). The most famous ascetic living on a pillar, by the way, was St. Symeon Stylites, who lived on a pillar rising to 15 meters for 20 years (circa 400 AD).