noun
pillar
PIL-er/ˈpɪlər/
A tall upright column that supports a structure.
Two stone pillars support the roof above the front entrance.

Etymology
Latin pila meant “pillar” or “stone barrier”; its earlier origin is unknown. The English structural sense preserves the concrete idea of an upright member that can bear weight.
In context
this was the act of pillar robbing you see a pillar is a column of unmined ore used to support the roof of mine
More examples
- A thick wooden pillar supports the porch roof.
- Workers inspect the cracks in a concrete pillar beneath the bridge.
- Rows of marble pillars hold up the hall's high ceiling.
Forms
pillar · pillars